A chemical property of iron is its ability to combine with oxygen to form iron oxide, commonly known as rust; this process is known as corrosion. Therefore, the correct answer is that iron combines readily with oxygen "C".
The question asks about the chemical property of iron. Chemical properties describe the ability of a substance to undergo a specific chemical change. For iron, a key chemical property is its capability to combine with oxygen to form iron oxide, commonly known as rust. This process is part of a broader category of chemical changes known as corrosion. Unlike physical properties, which can be observed without changing the substance, chemical properties can only be seen as the substance is transformed into a different substance. Therefore, the correct answer to the question is C) Iron combines readily with oxygen.
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which part of the graph depicts the motion of an object which is at rest?( the bottom is times)
straight segment A
curve segment B
straight segment C
straight segment D
Its the straight segment C because its position is not going up or down, so it is not moving.
The motion of an object at rest is represented by a straight line with a slope of zero in a motion graph, likely represented by straight segment C in this case. Curves and lines with slopes indicate motion with either constant or variable speed. Understanding acceleration representation and the concept of reference frames is also critical while interpreting motion graphs.
Explanation:An object at rest would be represented in a motion graph by a straight line with a slope of zero. This is because the velocity, or speed, of an object at rest remains constant over time, which is zero. In this situation, straight segment C likely represents the motion of an object at rest if it is a horizontal line with no slope. Conversely, curves and lines with slopes indicate motion with either varying or constant velocity.
Additionally, it's important to understand that acceleration (change in velocity over time) can be represented graphically as well. Horizontal lines at some positive or negative value on an acceleration vs. time graph indicate constant acceleration, while variable lines suggest changing acceleration.
Finally, when interpreting such graphs, remember that the concept of reference frames plays a crucial part in understanding motion. As a visual representation, the motion graph describes the motion of an object relative to a defined point of reference. Hence, changing the frame of reference can drastically change the interpretation of the graph.
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Which statements describe the six elements found in all living things? Check all that apply.
Carbon is the basis of all living things.
Sulfur is found in bones, where it provides strength.
Nitrogen is found in certain foods.
Oxygen and hydrogen combine with each other to form water.
Only carbon, hydrogen, and phosphorus are found in organic compounds.
Carbon, oxygen, hydrogen, nitrogen, phosphorus, and sulfur are found in organic compounds.
Answer:
oxygen, hydrogen, nitrogen, phosphorus, and sulfur
Explanation:
Oxygen and hydrogen
A food web illustrates a snake eating a rat. What is the role of the snake in the food web?
A food web illustrates a snake eating a rat. What is the role of the snake in the food web?
A. Decomposer
B.Secondary consumer
C.Primary consumer
D.Producer
Answer:
B.Secondary consumer
Explanation:
A food web is a natural relationship in a food chain among organisms in an ecological community.
A secondary consumer in this system has to do with organisms that eat primary consumers, which means that they consume another animal or organism without producing.
Therefore, in a food web illustrates a snake eating a rat, the role of the snake in the food web is secondary consumer.
What is the mass of one mole of carbon dioxide, CO2? Round your answer to 2 places past the decimal. g/mol
44.00
28.01
44.01
Answer:- 44.01 gram per mol.
Solution:- Mass of one mole means the formula mass of the compound. Carbon dioxide has one carbon and two oxygens.
So, formula mass of carbon dioxide = atomic mass of C + 2(atomic mass of O)
Atomic mass of carbon is 12.01 and atomic mass of O is 16.00. So, formula mass of carbon dioxide = 12.01+2(16.00)
= 12.01+32.00
= 44.01
So, the mass of one mole of carbon dioxide is 44.01.
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Please help me reword this, I really don't like how I wrote it but I can't think of anything else!
Many every day activities lead to global warming because they produce pollution. When gas is burned in a car, it produces carbon dioxide, a Greenhouse gas. It floats up towards the atmosphere, and becomes the atmosphere. This causes the hat from the sun to get trapped, bouncing from the earth to the atmosphere. The sun doesn't stop producing heat, so the world gets hotter, causing many changes in temperature each decade that goes by.
Do you relizes how many activities lead to global warming? When gas is burned in a car, it produces carbon dioxide (a green house gas). The carbon dioxide then floats up towards the atmosphere and becomes part of the atmosphere. This then causes the heat from the sun to get trapped, bouncing from the atmosphere to the earth. The sun will never stop producing heat which will only lead to the world getting hotter as each decade goes by.
Hope this helps you!
Many every day activities lead to global warming because they produce pollution. When gas is burned in a car, it produces carbon dioxide, a Greenhouse gas. It floats up towards the atmosphere, and makes holes in the atmosphere which lets in those harmful UV radiation and sometimes also adds more atmosphere which could turn earth into the next venous. This causes the heat from the sun to get trapped, bouncing from the earth to the atmosphere. The sun doesn't stop producing heat, so the world gets hotter, causing many changes in temperature each decade that goes by.
hope that helped
Which kingdom does a multicellular living organism most likely belong to? Animalia
Archaebacteria
Bacteria
Eukarya
They would be apart of the Eukarya kingdom
Answer:
Comprehensive Science FLVS right, I took the end module exam to. It is Eukarya
Explanation:
the volume of liquid can be measured with? A. graduated cylinder B. pan balance C. scale D. metric ruler
a: is the correct anwser
Final answer:
A graduated cylinder is the correct tool for measuring the volume of liquid, with readings taken at the meniscus's lowest point. Pan balances and scales measure mass, not volume, and metric rulers are for measuring length.
Explanation:
The student asked which tool could be used to measure the volume of a liquid. The correct answer is a graduated cylinder. Graduated cylinders are precision instruments commonly used in labs to measure liquid volumes accurately. They can measure in units such as milliliters (mL) and centiliters (cL), offering flexibility for small or large amounts.
To use a graduated cylinder, you should first place it on a level surface and then pour the liquid into the cylinder. Observe the liquid level and make a reading at the bottom of the meniscus, the curve seen at the top of the liquid layer. The meniscus occurs because of the surface tension of the liquid in contact with the container. The correct volume will be where the lowest point on the meniscus aligns with the cylinder's measuring scale.
Other instruments such as a pan balance, scale, and metric ruler are not suitable for measuring liquid volumes. A pan balance and a scale are designed to measure mass, and a metric ruler is typically used for measuring lengths.
what is the independent and the dependent variable of this topic: witch liquid has the fastest evaporation rate
which of these scenarios involve a reaction that is at equilibrium
a.the reaction is producing more products than reactants
b..the reaction is producing more reactants than products
c. the amount is producing more reactants is changing
d.the amount is producing more reactants is constant
The correct answer is, the amount of products and reactants is constant.
The way metals surface reflects light is called
Which are the products in this chemical reaction? 2C4H10 + 13O2 8CO2 + 10H2O A. 13O2 + 10H2O B. 8CO2 + 10H2O C. 2C4H10 + 13O2 D. 2C4H10 + 8CO2
Answer: The products in the given chemical reaction are [tex]8CO_2\text{ and }10H_2O[/tex]
Explanation:
Reactants are defined as the species which react in the reaction and are written on the left side of the reaction arrow.
Products are defined as the species which are produced in the reaction and are written on the right side of the reaction arrow.
For the given chemical equation:
[tex]2C_4H_{10}+13O_2\rightarrow 8CO_2+10H_2O[/tex]
The reactants of the above reaction are [tex]2C_4H_{10}\text{ and }13O_2[/tex] and the products are [tex]8CO_2\text{ and }10H_2O[/tex]
Hence, the products in the given chemical reaction are [tex]8CO_2\text{ and }10H_2O[/tex]
Answer:
B
Explanation:
Reactants are defined as the species which react in the reaction and are written on the left side of the reaction arrow.
Products are defined as the species which are produced in the reaction and are written on the right side of the reaction arrow.
In a laboratory experiment, John uses a mesh to separate soil particles from water. Which technique of separation is he using? A. chromatography B. distillation C. filtration D. fragmentation E. condensation
The answer is C. Filtration
Answer : The correct option is, (C) Filtration.
Explanation :
Chromatography : It is a type of separation process in which the liquid or gas is separated into components at different rate.
Distillation : It is a type of separation process in which the mixture of liquid separated or evaporated at different temperatures.
Filtration : It is a type of mechanical separation process in which the solid is separated from the liquid through the filter paper.
Fragmentation : It is a type of process where the molecular ion breaks into the smaller ions or smaller radicals or neutral molecules.
Condensation : It is a type of process in which the phase changes from gaseous state to liquid state at constant temperature.
Hence, the correct option is, (C) Filtration.
Which of these is an example of a physical change
A. Breaking Bread
B. Baking Bread
C. Digesting Bread
D. Toasting Bread
A. Breaking Bread, because you can rip or cut it and it is still bread.
hope that helps :)
Answer:
a
Explanation:
What is the primary cause of global wind patterns on earth?
Answer:
Uneven heating
Explanation:
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What could red litmus paper be used to determine?
If a solution is supersaturated.
If a solution is acidic.
If a solution is basic or neutral.
If a solution is acidic or neutral.
Hematite is a naturally occurring mineral and a common form of iron ore. The following statements describe physical and chemical changes occurring to hematite. Which statement describes a chemical change? A. The hematite particles separate from each other but remain the same substance. B. The hematite particles rearrange to form a new substance. C. The hematite particles are mixed with particles of a different substance. D. The hematite particles vibrate more quickly when they are heated. E. The hematite particles are moved from one location to another location.
The correct answer is option B.
The hematite particles rearrange to form a new substance. This is an example of a chemical change.
A chemical change is an irreversible process wherein the atoms of a substance undergoes a rearrangement that causes it to from a new substance with unique chemical properties.
Answer:
B. The hematite particles rearrange to form a new substance.
Explanation:
PLATO
How does radiation differ from conduction?
A) Radiation can move through empty space to transfer heat; conduction cannot.
B) Radiation needs a medium in order for heat to transfer; conduction does not.
C) Radiation requires objects to have direct physical contact; conduction does not.
D) Radiation transmits heat by circulating particles in an object; conduction does not.
Answer:
The answer is A) Radiation can move through empty space to transfer heat; conduction cannot.
Explanation:
Answer: It is A (Radiation can move through empty space to transfer heat; conduction cannot)
Explanation:
What is study of the origin and structure of the universe
The technical term for the study of the origins of the universe is cosmogony, although informally the term cosmology covers this as well. Answer: The universe is composed of matter and energy.
The origin of the universe, its elements, and its structure are studied in the field of astronomy which is referred to as cosmology. It also studies the evolutionary theory of the universe.
What is cosmology?Cosmology is the astronomical branch that studies and analyzes the evolution and origin of the universe and the celestial or astronomical bodies found in them.
It is a scientific study that explores and researches the physical and chemical properties of the universe and its element based on the hypothesis and observed facts.
It even deals with the human and organismic origin and earth as the only planet that sustains life. The big bang theory is the most exemplified study in cosmology.
Therefore, cosmology is the study of the origin and structure of the universe.
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what atom has 24 neutrons,and 45 mass
It is Scandium or Sc
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Define and explain Resonance ?
Resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies.
Frequencies at which the response amplitude is a relative maximum are known as the system's resonant frequencies or resonance frequencies. At resonant frequencies, small periodic driving forces have the ability to produce large amplitude oscillations, due to the storage of vibrational energy.
What atom has 19 protons and 20 neutrons
Potassium Does! Hope that helps
Potassium has 19 protrons and 20 neutrons. We can easily tell this because on The Periodic Table, potassium (symbol "K") is number 19. Meaning it has 19 protons and 19 electrons.
what is the elephant toothpaste
Elephant toothpaste is the term given to a chemical reaction that results in a large amount of foam, similar visually to toothpaste squeezed from a tube. It is not to be confused with actual toothpaste, which is a product used for oral hygiene containing abrasives, flavorants, and fluoride.
Explanation:Elephant toothpaste is a name commonly given to the chemical reaction that produces a large quantity of foam, reminiscent of toothpaste being squeezed out of a tube. It is not actual toothpaste and should not be used for oral hygiene. Instead, the name is a playful term referring to the visual similarity between the rapid foamy output and an imagined amount of toothpaste that would be suitable for an elephant.
On the other hand, actual toothpaste is a paste or gel used with a toothbrush to clean and maintain oral health. It contains abrasives to aid in plaque removal, flavorants like peppermint, and fluoride to prevent cavities. Various forms of fluoride, like sodium fluoride and stannous fluoride, are used in toothpastes. It's important to note that only actual toothpaste should be used for oral hygiene, not fun chemistry experiments like elephant toothpaste.
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5 Uses of elements or its Compounds: Oxygen
fresh air for breathing
ability to sustane life
treat peoples breathing problem
energy in automobiles
industriel procces
A piece of iron has a volume of 11.6 cm3 and a mass of 63.5g what is its density?
The density of an object, a fundamental principle in physics, is calculated by dividing its mass by its volume. In the case of the iron piece that has a mass of 63.5g and a volume of 11.6 cm3, its density is calculated to be 5.47 g/cm3.
Explanation:The density of an object is calculated by dividing its mass by its volume. This concept is a fundamental principle in physics. In this case, the piece of iron has a mass of 63.5g and a volume of 11.6 cm3. Thus, the density can be calculated using the formula density = mass/volume.
So, density = 63.5g / 11.6 cm3 = 5.47 g/cm3. Therefore, the density of the given piece of iron is 5.47 g/cm3.
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Which substances will make a salt when combined? (2 points) Vinegar and antacids Soda and wine Soap and ammonia Fertilizer and detergent
vinegar and antacids.
Complete the passage to describe how electrons are represented in electron dot diagrams. The maximum number of dots an electron dot diagram can have is( A:two, B:Four, C:Six, D:Eight) The maximum number of dots drawn on a side of a chemical symbol in an electron dot diagram is ( A:two, B:Four, C:Six, D:Eight)
The maximum number of dots an electron dot diagram can have is EIGHT.
The maximum number of dots drawn on a side of a chemical symbol in an electron dot diagram is TWO.
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The maximum number of dots an electron dot diagram can have is (D:Eight). The maximum number of dots drawn on a side of a chemical symbol in an electron dot diagram is (A:two)
A dot diagram is a representation of the number and arrangement of electrons in the outermost shell of an atom usually a pair of electrons at the four cardinal points around the symbol.By convention,
The maximum number of dots an electron dot diagram can have is (D:Eight)The maximum number of dots drawn on a side of a chemical symbol in an electron dot diagram is (A:two)Read more:
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Charlie is balancing an equation. She has identified the atoms and counted the number of each in the reactants and products. What would Charlie adjust to make the number of atoms in the reactants the same as the number of atoms in the products? A. coefficients B. subscripts C. superscripts D. parentheses
Answer:
A. coefficients
Explanation:
Balancing the chemical reaction -
As , we know , atoms can not be created and destroyed , hence their is only the transfer of atoms , which take place in a chemical reaction .
Hence , it is important to balance a chemical reaction .
for any reaction , the atoms are balanced by using certain whole number that are placed as a coefficient .
As, is the numbers are placed as superscripts or subscripts, it will alter the chemical structure of the compound .
Hence , the correct answer is A. coefficients .
the best way seperate salt fron wateris with the use of
A. oil.
b. rubbing alcohol
c. a magnet
d. heat
You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water. One way to separate salt and water at home is to boil the salt water in a pot with a lid. So, I would say maybe oil.
The closeness of a measurement to its true value is a measure of its:
Accuracy
Hope this helps!!
Accuracy is a measure of how close a measurement is to its true value, and it is influenced by systematic errors. It differs from precision, which is about the consistency of repeated measurements. An accurate measurement aligns closely with the accepted true value.
Accuracy is a measure of how close a measurement is to its true value. In science, accuracy is crucial because it indicates the degree to which a measured value aligns with the accepted true value of that quantity.
what class of organism is vital in the recycling of nutrients in the ecosystem?