2. Which of the following is NOT a clue that a chemical change has occurred? (1 point)

change in color

production of a gas

formation of a precipitate

change in shape

Answers

Answer 1

Answer:

D. Change in shape

Explanation:

Change in shape is the physical property of the substance. Chemical change of the compound is observed during a chemical reaction. Change in colour, production of the gas, formation of a precipitate are the examples of chemical change and can be sensed easily.

Vapour pressure, boiling point, density and shape are the examples of physical properties of compounds. Chemical change also leads to change in texture of the compound. A compound has both physical and chemical properties and its chemical reaction is enhanced by the catalyst.


Related Questions

How can you describe the environment in which an organism lives?

Answers

A habitat is a natural home or environment of an organism; the physical environment in which a species lives.
Final answer:

The environment in which an organism lives, also known as its habitat, involves several key factors such as the availability of resources, geographical location, and physical characteristics of the environment. The species' specific adaptations to the conditions of their habitat also form part of the environment's description.

Explanation:

The environment in which an organism lives can be described by several key factors. These include competition for limited resources, such as organic material, sunlight, and mineral nutrients, which are essential for life processes and contribute to the physical structures of organisms. The physical and geographic aspects of an environment like latitude, rainfall, topography, and species availability also play crucial roles.

For instance, an ecosystem can range in size from a small tide pool to a large rainforest, and each of these ecosystems provides a unique habitat that supports different types of organisms. Various factors, such as climate, elevation, and geology, also contribute to the suitability of a habitat for an organism. Animals and plants have developed specific adaptations to enable them to thrive in their specific habitats.

In general, ecosystems can be categorized into freshwater, ocean water, and terrestrial environments. Each of these broad categories can be further broken down into individual ecosystem types based on the organisms present and the environmental habitat.

Learn more about the Environment of Organisms here:

https://brainly.com/question/28625504

#SPJ6

If one Snapdragon flower has red petals and another has white petals, they most likely have:

Answers

Answer:

A. Different alleles of the same gene

Explanation:

Think about it, if one parent produces red petals and the other parent produces white petals - then both parents give off different alleles for that one gene - to become identical.

how does the molecular structure of base pairs ensure that two strands of DNA are complementary

Answers

Answer:  The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. ... The hydrogen bonding between complementary bases holds the two strands of DNA together. Hydrogen bonds are not chemical bonds. They can be easily disrupted.

Explanation:

Final answer:

The base pairs in DNA (Adenine-Thymine and Guanine-Cytosine) bond using specific hydrogen bonding patterns, which ensure the strands are complementary and thus allow reliable replication and protein synthesis.

Explanation:

The molecular structure of DNA is based on the principle of base pairing, which ensures the two strands are complementary. DNA uses four nitrogenous bases: adenine, guanine, cytosine, and thymine. Adenine (A) always pairs with Thymine (T), and Guanine (G) with Cytosine (C). This pairing is due to the specific hydrogen bonding between the bases. With Adenine-Thymine forming double hydrogen bonds and Guanine-Cytosine forming triple hydrogen bonds. This set pattern of base pairing ensures the two strands are complementary, meaning when the sequence of one strand is known, the sequence of the other can be determined. This principle is fundamental to DNA replication and protein synthesis.

Learn more about Base Pairing in DNA here:

https://brainly.com/question/33455802

#SPJ3

Which type of proteins exhibit only primary and secondary structure?

Answers

Answer:

two bonds that can rotate in space between each amino acid in the backbone of the primary sequence. These restricted movements, when repeated through several amino acids in a chain, yield the two main types of protein secondary structure: the alpha (α) helix and the beta (β) strand.

hope this helps :) can i get brainliest?

Explanation:

Which of the following statements describes a feature shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their basic functions?
A. They have rigid, non-fluid membranes.
B. They have highly folded membranes.
C. They have membranes composed of many carbohydrates.
D. They have double membranes, with one membrane enclosed within the other.

Answers

Answer:

The answer is B. They have highly folded membranes.

Explanation:

A highly folded structure is advantageous for microscopic organelles such as the mitochondria and the endoplasmic reticulum. These organelles need to produce high amounts of ATP and proteins in a day, respectively.

For the endoplasmic reticulum, with ribosomes attached, it is responsible for the manufacturing, packaging, and transport of specific proteins. Same goes for the mitochondria, which is responsible for energy production and respiration. These processes are so demanding that in order to be more efficient in being productive, the highly folded membranes provide a wider and better surface area for synthesis of proteins or ATP, despite the size of these organelles.

A feature that is shared by mitochondria and the endoplasmic reticulum that increases the efficiency of their basic functions is B. They have highly folded membranes.

It should be noted that a highly folded structure is advantageous for microscopic organelles like the endoplasmic reticulum and the mitochondria.

It should be noted that the organelles need to produce high amounts of ATP and proteins. For the endoplasmic reticulum, it manufactures, packages, and transports some specific proteins.

The mitochondria is responsible for energy production and respiration. They've to be efficient in carrying out their functions effectively, they have highly folded membranes.

In conclusion, the correct option is B

Read related link on:

https://brainly.com/question/13363690

Sugars do not function only in the production and storage of cellular energy. They also can be used to make mechanical supports. Both plant and fungal cells gain structural support from cell walls composed of carbohydrate polymers. Compare the chemical component(s) of these cell walls.
A) Like plant cells, fungal cells possess a clews composed of cellulose.
B) Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin.
C) Plant cell walls are composed of starch while fungal cell walls are composed of cellulose.
D) Plant cell walls are composed of cellulose while fungal cell walls are composed of a mixture of cellulose, starch and chitin.

Answers

Answer: B)  Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin.

Explanation: Plant cell walls are composed of cellulose while fungal cell walls are composed of chitin./b> Both compounds are carbohydrate polymers, but are composed of different monomers. The cellulose of plant cell walls is a polysaccharide of glucose. The chitin of insect exoskeletons and fungal cell walls, is also a polysaccharide: a linear polymer of a sugar derivative called N-acetylglucosamine.

Final answer:

Plant cell walls are composed primarily of a carbohydrate polymer called cellulose, providing structural support. Conversely, fungal cell walls are made primarily of a unique carbohydrate polymer called chitin. Despite both providing structural support, they are composed of different carbohydrate polymers.

Explanation:

When comparing the chemical components of the cell walls of plants and fungi, B) is the correct option. Plant cell walls are primarily composed of a carbohydrate polymer called cellulose. This material is tough and fibrous, providing plants with the necessary structural support and rigidity.

On the other hand, fungal cell walls are primarily composed of a unique carbohydrate polymer called chitin. While it similarly provides structural support, chitin is a different substance entirely with its own unique properties. Therefore, despite both serving a similar purpose, plant and fungal cell walls are composed of different carbohydrate polymers: cellulose and chitin respectively.

Learn more about Cell Wall Composition here:

https://brainly.com/question/31864703

#SPJ6

Which topic in a biology textbook is directly related to physics

Answers

Answer: osmosis and cellular transport

Explanation: this is 100% just answerd it and got it right

What is the baby learning through play in the following scenario? Cameron is seven months old and is fascinated by her
rattle. She shakes it, stares at it, and giggles when it makes noise.
coordinated movement
noise recognition
problem solving
cause and effect

Answers

Answer:

noise recognition

Explanation:

Answer:

noise recognition

Explanation:

correct answer on edge.

Where is the least amount of energy transferred in a food web

Answers

Answer:The tropic level

Explanation: In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy. The energy in each trophic level of an energy pyramid is just 10 percent of the energy in the level below it.

Answer:

the producers

Explanation:

because their tissues are less dense :)

What is the volume of 65.4cm​

Answers

Answer:

If you mean 65.4cm³, then the volume would be 279726.264 centimeters³

Explanation:

How has the Doppler effect and the redshift of stars and galaxies indicated that the universe is expanding?

A: The Doppler effect says that the higher the frequency of waves, the further an object is moving from the observer. The color red has the shortest wavelength.

B: The Doppler effect says that the lower the frequency of waves, the faster an object is moving toward the observer. The color red has the longest wavelength.

C: The Doppler effect says that the frequency of sound or light waves is affected by whether the emitting object is moving toward or away from the observer. The color red has the longest wavelength.

D: The Doppler effect says that the frequency of sound or light waves determines the color of an object. The color red has the longest wavelength.

Answers

B is the answer because wavelengths from far away are red-shifted and short ones are blue-shifted

Answer:

Option C

Explanation:

As per the doppler's effect, when an object in the universe move at a fast speed away from the observer, its possesses a high wavelength as compared to its original wavelength.

Since red light has the highest wavelength, any object's wavelength moving towards a high values is said to be red shifted.

Thus, the higher the wavelength, the lower will be the frequency of an object and hence it moves at a faster speed away from the observer and hence the universe is said to be expanding.

Thus, option C is correct.

Which choice has eukaryotic animal cells?


A: liver


D: oak

C: virus


D:Lactobacillus

Answers

Answer:

A.) Liver has Eukaryotic Cells.  

Explanation:

Trust me.

As an animal cell, the liver lacks the cell wall, chloroplast, and big vacuole that are often seen in plant cells. Thus, option B is correct.

What are the eukaryotic animal cells?

Animals are all eukaryotic cells. Animal cells differ from those of other eukaryotes, most notably plants, in that they have smaller vacuoles and don't have cell walls or chloroplasts.

Animal cells can change into a variety of shapes because they don't have a cell wall.

Eukaryotes are organisms whose cells have membrane-bound organelles in addition to a nucleus. Eukaryotic creatures come in a great variety, including most algae, all animals, plants, fungus, and protists.

Therefore, liver is a eukaryotic animal organ.

Learn more about eukaryotic cells here:

https://brainly.com/question/13021635

#SPJ2

Which describe what will mostly happen to the trout population

Answers

Answer:

Trout is a very common freshwater fish. The lifespan is very small.  

Explanation:

The trout population is affected by the climate change and also the pollution present in the freshwater. These fish variety travel for across to lay eggs. And after laying eggs they just die. The climate change and the the fishing of this variety has negatively affected the population. There are lot of varieties of trout fish like rainbow albino etc.

The rise in temperature and flood in a river is a major factor which effects the population of this fish. in USA when the temperature rises it result in flood condition in the river which affects the lifestyle of this fish.

what is the next step of the scientific method

Answers

Answer:

Next step? Since you didn't specify here's all of them:

Explanation:

Question/ProblemHypothesisResearchExperimentDataConclusionAnalysis Communicate Results

All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon?
A.
Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms.
B.
Carbon atoms are highly reactive and form unstable bonds with any available atom.
C.
Carbon atoms can bond with many other kinds of atoms to form very stable molecules.
D.
Carbon atoms are very stable and do not easily form bonds with other atoms.All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon?
A.
Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms.
B.
Carbon atoms are highly reactive and form unstable bonds with any available atom.
C.
Carbon atoms can bond with many other kinds of atoms to form very stable molecules.
D.
Carbon atoms are very stable and do not easily form bonds with other atoms.

Answers

Answer: C

Explanation:

All living organisms contain carbon atoms.Carbon atoms can bond with many other kinds of atoms to form very stable molecules. This is an important characteristic of carbon therefore it is present in many living organisms. It is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms .This is due to the fact that  the carbon atom is just the right  size to fit in snuggly as part of very large molecules.

The statement ''Carbon atoms can bond with many other kinds of atoms to form very stable molecules'' is an important characteristic of carbon.

Answer: Option C

Explanation:

Carbon is found in all the living organisms right from the extinct dinosaurs to the existing living organisms. It is the most abundantly available material in the whole world. Thus it helps us to identify the living period of fossils by the carbon deposited in it through a process called carbon dating.

Living things get carbon from the carbon dioxide dissolved in the atmosphere. Carbon has the tendency to bond with many other kinds of atoms to form a very stable molecule like graphite, diamond etc. Carbon is the base of the entire bio-chemistry.

Question 5
Which structure would not be found in both prokaryotic and eukaryotic cells?
Cytosol
Mitochondria
Ribosomes
Plasma membrane
Question 6
Prokaryotic and eukaryotic cells have several differences. Which statement below is not one of th

Answers

Mitochondria would not be found in both prokaryotic and eukaryotic cells? (option B)

What is mitochondria?

Mitochondria are organelles found in the cells of most eukaryotic organisms. They are often referred to as the "powerhouses of the cell" because they are responsible for generating most of the cell's ATP, which is the cell's main source of energy

Mitochondria are only found in eukaryotic cells, not prokaryotic cells. Prokaryotic cells are the simpler type of cell, and they do not have the same level of complexity as eukaryotic cells.

Learn about Mitochondria here https://brainly.com/question/15159664

#SPJ3

Which correctly describes a difference between the male and female
reproductive systems? A. Only females produce gametes
B. Males have a monthly cycle.
C. Only males are fertile.
D. Females produce gametes less often.

Answers

Answer:

Females produce gametes less often.

Explanation:

Females produce gametes less often.

The statement females produce gametes less often correctly describes a difference between the male and female reproductive systems.

What are the functions of reproductive system?

The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction.

The tissues, glands, and organs involved in producing offspring (children). In women, the reproductive system includes the ovaries, the fallopian tubes, the uterus, the cervix, and the vagina.

The primary reproductive organs are the gonads, which produce the gametes and hormones. The secondary, or accessory, structures transport and sustain the gametes and nurture the developing offspring.

Learn more about reproductive system:

https://brainly.com/question/14235396

#SPJ7

What is cardio respiratory endurance

Answers

Cardiorespiratory endurance is the ability of heart and lungs to absorb, transport and utilize oxygen over extended period of time during physical exertion.

What skills or attributes make you a good environmental scientist

Answers

Answer:

Written and oral communication skills.

Teamwork.

Problem solving.

An investigative mind.

Observation skills and critical thinking.

Innovative thinking.

Good with statistics.

Commercial awareness.

Final answer:

Skills such as critical thinking, scientific knowledge, and communication abilities make a good environmental scientist.

Explanation:

There are several skills and attributes that make a good environmental scientist. One important skill is critical thinking and problem-solving, which are necessary for analyzing complex environmental issues and developing effective solutions. Another important attribute is a strong understanding of scientific principles and research methodologies, as this knowledge is essential for conducting accurate and reliable environmental research. Additionally, good communication skills are crucial for effectively conveying scientific findings and collaborating with others in the field.

For example, an environmental scientist may use critical thinking skills to analyze the causes and impacts of deforestation, and then develop strategies to mitigate its effects. They may also use scientific principles to conduct experiments and gather data about air pollution, and then communicate their findings to policy-makers and the public to advocate for change.

In conclusion, a good environmental scientist should possess skills such as critical thinking, scientific knowledge, and communication abilities.

Is a fire abiotic or biotic

Answers

Answer:
Yes.

Explanation:
Fire is not a living thing, and abiotic factors are the factors in an ecosystem that are not-living. Therefore, fire is an abiotic factor in an ecosystem, though is rarely mentioned.

how do costal and interior plains differ? how are they similar?

Answers

Answer:

The correct answer is "Coastal and interior plains differ in their location, where coastal plains are adjacent to the sea coast and interior plains are in the middle of territory. Coastal and interior plains are similar in that both are structurally flat and low-lying pieces of land".

Explanation:

A plain is defined as large areas of flat land with the presence of few vegetation. Coastal and interior plains differ in their location, where coastal plains are adjacent to the sea coast and interior plains are in the middle of territory. Coastal and interior plains are similar in that both are structurally flat and low-lying pieces of land, which contrasts with other landforms such as mountains and hills.

An organism has two different possible traits, A
and B. A graph of the population is shown right.
Which of the following statements is true about
Trait B? Check all that apply.

Answers

Answer:

A-It decreased in frequency over time.

Explanation:

did it and got 100

Answer: It decreased in frequency over time.

Explanation: :)

What is the mass of milliliter of pure water? What about 1 L of water?

Answers

kinda 1 milliliter (ml) of water weighs 1 gram (g). The prefix in front of the unit tells you how to move the decimal. 1 milliliter = 0.001 liters because "milli" means "thousandth". 1 "thousandth" of a liter = 0.001 liters.

Which of these best defines “environmental science”?

A The study of how humans interact with the environment
B The study of life
C The study of the properties and changes of matter
D The study of how plants interact with the environment

Answers

Answer:

A or/and D

Explanation:

Environmental science is the study of how organisms interact with their environment so it can be either a or d. I would say a combination of both.

Answer:

The study of how A. Human interacts with the environment is considered as best definition for environmental science.

Explanation:

Environmental science is the investigation of the cooperation between the physical, concoction, and organic segments of nature. It comprises of various subjects like geography, hydrology, soil sciences, plant physiology, and environment.  

Ecological researchers may have preparing in more than one order; for instance, a geochemist has mastery in both geography and science. With the knowledge of all these filed, the interaction between human and the natural world is researched and studied.  

what is the difference between plant and animal cells ? a .an animal cell can produce energy ,because it has mitochondria . b. a plant cell has a well defined shape, because it has a cell wall . c . a plant cell can store genetic information , because it has a nucleas . d. molucules can only pass into an animal cell because it has a cell membrane . which one ?

Answers

Answer: plant cell makes its own food using energy from the sun however animals cells help make their own baby and have a cell wall

In a prokaryotic cell, most ribosomes are

Answers

Answer: cytosol

Explanation:

Ribosomes are special because they are found in both prokaryotes and eukaryotes. While a structure such as a nucleus is only found in eukaryotes, every cell needs ribosomes to manufacture proteins. Since there are no membrane-bound organelles in prokaryotes, the ribosomes float free in the cytosol.

Answer: floating freely in the cytoplasm.

Explanation: i just got it right

[CM.06]The picture below shows four locations on the map of Australia.

Four locations (A, B, C, and D) are shown on a map of Australia. Point A is located inland on the western portion of the island, Point B is located inland in the northern portion of the island, Point C is located inland on the western portion of the island, and Point D is located on the southern portion of the island along the coast.
Which of these locations is most likely to experience moderate climate throughout the year?

Location A
Location B
Location C
Location D

Answers

Location B is the answer to question

Answer:

A

Explanation:

Please help me fill in all blanks starting from the box that said about the world around them

Answers

Answer:

In this order:

observations

ask questions

hypotheses

controlled experiments

control group

an independent variable

a dependent variable

data

Which gas is found in high percentages in the atmosphere in all of the gas
giants?
O A. Nitrogen
O
B. Hydrogen
O
O
C. Carbon monoxide
O
O
D. Oxygen
O
E. Carbon dioxide
///Apex\\\

Answers

Answer:Nitrogen is found in a highest amount in Atmosphere.It is found in 78%

Explanation:

Answer:

Hydrogen

Explanation:

Which specialized cells are responsible for transmitting messages throughout the body?
neurons
epithelial cells
blood cells
muscle cells

Answers

Answer: well by process of elimination we can get are answer.

1 muscle cells, what is there function locomotion of your skeletal system and in turn your body.

2 blood cells, can clot blood due to platelets within/making up blood. Plasma carries nutrients excluding oxygen to cells. Red blood cells carry that good old Oxygen necessary for ATP production via the electron transport chain. (Don’t be confused by this ATP can be made in other process like the Krebs cycle, glycolysis, ETC)  Finally white blood cells include lymphocytes, granulocytes, monocytes, and macrophages.  

3 epithelial cells, epithelial cells line the outside of your body and certain things inside your body there main function is pathogen and or virus protection.

So the only possible answer is nerve cells or neurons.

Answer:

AA_AA_AA_AA_AA_AA_AA_AA_AA_AA_AA_AA_AA_AA_AA_AA_AAA_AA_A_A_A_A_AAA_AA_AAA_AAA_AAA_AA_AAAA_A_AAA_AAA_AA_A_AAAA_AAA_aa_AAA_AAAAaAAaa-AA_AAAA_AAAAAA_aa-AAAA-AA-Aa+a=

THE ANSWER IS A

Explanation:

Other Questions
Which of the following happens when unbalanced forces act on an objectI need this ASAP answers The object remains stationaryThe object moves with the same velocity The object moves in the direction of the stronger force The objects feed and direction of motion remain unchanged What was Indentured servitude?Apex history classA. A system that allowed people to work in return for passage to america B. A trade system that brought African slaves to the plantations C. A system that paid Native Americans to work for planters D. A system that sent colonists to England to find work A rectangle has a length of 27 feet less than nine times its width. If the area of the rectangle is 972 find the length of the rectangle Which physiological response is due to a "positive feedback loop"? A. Body temperature regulation B. Blood pressure regulation C. Blood sugar regulation D. Blood loss regulation Identify the irrational sum(s). Select all that apply. Which of the following is not an appropriate category of childrens book to include in the early childhood classroom? A. Chapter Book B. Picture Book C. Concept Book D. Counting book Do more than 50 percent of the children in a certain group have brown hair? (1) 70 percent of the boys in the group have brown hair. (2) 30 percent of the children in the group are girls with brown hair. use the data set to choose the two measures that are equivalent. 4,5,6,7,8 Median Mode mean can somebody please help me with this question? i can't figure it out After Alexander the Great invaded Egypt, the EgyptiansA. welcomed him and crowned him pharaoh.B. cut off his troops and drove him out of Africa.C. worked to assassinate him and take back control.D. embraced a new leader to undermine his authority. why did the battle of bunker hill change british strategy at the beginning of the american revolutionary war?a) the battle made naval warfare less important during the warb) british casualties during the battle were very highc) colonial troops werent as well trained as the british assumedd) supplies for both sides were nonexistent for months after the battle Abigail, age 12, has just experienced a sudden growth spurt. According to the usual sequence of puberty, soon she will notice _____. A. breast development B. initial pubic hair growth C. her hips growing wider D. an increase in her shoe size How many times does the quadratic function below intersect the x-axis?y = 2x2 +7x+6 In what three ways did they differ?McCandless did not survive his journey, whileThoreau dichThoreau settled in one place, whileMcCandless traveled.Thoreau appreciated simplicity and nature;McCandless preferred modern society.McCandless went alone; Thoreau joined agroup at Walden Pond.Thoreau stayed near a town; McCandlesstried to escape the influence of people.DONE How does balance work? (Mass can be measured by mass.) Which sentence contains a comma splice?O Marco rode to school on his bicycle this morning, he arrived an hour early.O Marco, who enjoys riding his bicycle to school, arrived just before the bell today.O Marco rode to school on his bicycle on Monday, Tuesday, and Wednesday.Marco, who rode to school on his bicycle this morning, arrived an hour early. A ____________ is an underlying assumption or inference that the writer takes for granted. suppose you want to set up an experiment to test the hypothesis that electromagnetic fields cause CCD, and you have 6 hives to work with. Which of these is the best experimental setup?A. 6 hives exposed to high levels of EMF B. 5 hives exposed to high levels of EMF and 1 hive with no EMF exposureC. 3 hives exposed to high levels of EMF and 3 hives with no EMF exposureD. 2 hives exposed to low EMF levels, 2 hives exposed to medium EMF. levels, and 2 hives to high EMF levels The fate of privatized prisons cannot yet be determined.TrueFalse A group of people who share the same characteristics of the population is called a representative sample.TrueFalse