Which statement accurately describes what happens when water turns to stream in terms of energy?
A. The water releases energy which causes chemical bonds to break, changing water to steam.
B. The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
C. The water absorbs energy which causes chemical bonds to break, changing water to steam.
D. The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
C. The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
I took the quiz and this is the correct answer
what are at least two things people can do today to help protect Earth and reduce levels of CO2.
What type of forces affects the speed and direction of motion of an object?
A: Balanced forces
B: Unbalanced forces
C: Equal and opposite forces in the vertical plane
D: Equal and opposite forces in the horizontal plane
The correct Answer Is B
How many hydrogen atoms are there in 5 molecules of CH2Cl2?
The 1 molecule of CH₂Cl₂ contains 2 hydrogen atoms so for 5 molecules of CH₂Cl₂ there will be 10 hydrogen atoms.
What are molecules?Molecules are defined as a group of two or more atoms that forms a smallest identifiable unit into which pure substance can be divided and still retain the composition and properties of that substance.
It can also be defined as two or more atoms connected by a chemical bonds.
Atoms can be defined as a smallest unit of ordinary matter that forms a chemical elements.
Thus, the 1 molecule of CH₂Cl₂ contains 2 hydrogen atoms so for 5 molecules of CH₂Cl₂ there will be 10 hydrogen atoms.
To learn more about molecules, refer to the link below:
https://brainly.com/question/1446104
#SPJ2
a mixture of emanations from radioactive atoms is passed through electrically charged plates imagination number one is attracted to the negative plate number to is attracted to the positive plate and number three goes to go straight through on the flag.
The experiment involves alpha, beta, and gamma rays (different types of radioactive decay) passing through electrically charged plates, being attracted based on their charge, with alpha particles going to the negative plate, beta particles to the positive, and gamma rays passing through unaffected.
Explanation:The experiment described involves the passing of radioactive emissions from various atoms through a pair of electrically charged plates. The attraction of certain particles to either the positive or negative plate hints at the different types of radioactive decay: alpha, beta, and gamma.
Alpha particles, being positively charged helium atoms, are attracted to the negatively charged plate. Beta particles - high-energy electrons - have a negative charge, thus are attracted to the positive plate. Finally, gamma rays, which are uncharged electromagnetic waves, are not affected by the electric field and pass through unaffected.
This experiment mirrors the studies conducted by Ernest Rutherford where he utilized electrical fields to distinguish and classify these types of radioactive decay.
Learn more about Radioactive Decay here:https://brainly.com/question/1770619
#SPJ12
Transition metals can be found in Families 3 through 12 on the periodic table. What property do transition metals share?
A.
they do not combine readily with other elements
B.
they do not conduct heat or electricity
C.
they are brightly colored and are often used to make pigments
D.
they are rarely found as single elements in nature
Answer:
The correct answer is option C.
Explanation:
Properties of transition metals:
They show variable oxidation states.Most these elements form colored compounds.They have great tendency to form complexes.They also form interstitial compounds with hydrogen , carbon, boron, and nitrogen.Also used in preparation of alloys.Many of these compound shoe catalytic property.Gamma rays are often used to kill microorganisms in food, in an attempt to make the food safer. Some people contend that this irradiated food is actually less safe to eat. Which, if true, would most effectively dispute their idea?
Irradiated food is shown to not be radioactive, which directly dispels safety concerns. Gamma irradiation safely extends food shelf life by eliminating harmful microbes and is regulated by the FDA to ensure safety. Option B is correct.
The best choice that would contradict the safety concerns about irradiated food is Irradiated food is shown to not be radioactive. This directly addresses the main public concern that consuming irradiated food could lead to exposure to radioactivity.
Gamma irradiation is used as a method to eliminate harmful microbes in food, thereby extending its shelf life and making it safer. The foods subjected to irradiation do not become radioactive themselves because the irradiation process does not involve direct contact with radioactive materials. Furthermore, the Food and Drug Administration (FDA) regulates the sources of radiation and has determined that irradiating food is a safe practice.
Thus, contradicting the misconception, irradiated food retains its nutritional quality and is considered safe for consumption.
Hence, B. is the correct option.
The complete question is:
Gamma rays are often used to kill microorganisms in food, in an attempt to make the food safer. Some people contend that this irradiated food is actually less safe to eat. Which, if true, would most effectively dispute their idea?
A) Irradiated food only emits alpha particles, which are harmless.
B) Irradiated food is shown to not be radioactive.
C) Irradiated food only contributes to background radiation.
D) Irradiated food has molecules that undergo transmutation
What is something that has mass and takes up space
What would happen if there were no abiotic factors in an ecosystem
Choose all of the answers that are correct when describing this atom.
This atom is chlorine.
This atom is bromine.
The mass of this atom is 52 amu.
This atom has an overall charge of 0.
The mass of this atom is 69 amu.
Choose all that apply
Answer:
This atom is chlorine.
The mass of this atom is 35 amu.
This atom has an overall charge of 0.
ExplanatiI GOT IT RIGHT
PLEASE HELP!!!!! I REALLY NEED HELP
Given the following sets of values, calculate the volume in liters.
P = 102.3 kPa
V = ____ L
n = 0.00831 mol
T = 298.15 K
Use R = 8.314 L- kPa/ mol-K
Quantitative data or observations mean that you measure something. Which observation made by Ben is quantitative?
A) Each pea pod grew 5 centimeters in a week.
B) The pea plants that were given fertilizer grew taller.
c) Some of the pea plants did not have flowers or pods.
Which best describes the relationship between the direction of energy and wave motion in a transverse wave?
A. The energy direction is perpendicular to the motion of the wave.
B. The energy direction is in the opposite direction of the motion of the wave.
C. The energy direction is parallel to the motion of the wave.
D. The energy direction has no relationship to the motion of the wave.
Answer:
The answer is
A.
Explanation:
On the way to the lungs, air passes through the
(1) trachea
(2) esophagus
(3) intestine
(4) stomach
Sarah performs an experiment to see whether bees prefer red flowers or yellow flowers. Look at this table of results from the What is the independent variable?.
it's c.color of flower
How did humans and animals adapt/survive to hurricane Katrina? AND Give examples of organisms that could not adapt/survive? PLS ANSWER HELP 100 POINTS
Hello!
Most people/ animals died from Hurricane Katrina. 600,000 pets died from the devastating hurricane and 1,833 people died. People adapted by getting to higher ground and doing what you can to survive. Animals unfortunately didn't have the capabilities to climb upon houses and such. They don't have arms and legs like humans do, so many animals died. Animals that died are : cows, dogs, cats, and such on. 80% of New Orleans was under water and up to 20 ft deep in some places.
Hope it helps!
A 1 kg block of copper is hammered into a thin sheet. The length of the copper sheet is 30 cm. What is the mass of the copper sheet? A) 1 kg B) 30 kg C) 1.03 kg D) Cannot be calculated at all
The mass of copper will remain the same. Therefore, the mass of the copper is equal to 1 Kg. Therefore, option A is correct.
What is law of conservation of matter?Matter can be transformed form through physical changes and chemical changes from one form to another form, but through all changes, the matter will remain conserved. The same quantity of matter will be there even before and after the change therefore none of the matter is created or destroyed.
According to this law, that mass is never formed nor destroyed, although it may be rearranged in space with the changes associated with it may be changed its form.
For example, the mass of the chemical components before the reaction in chemical reactions is equal to the mass of the components after the reaction.
On hammering the copper mass into the tin sheet, the shape of the copper mass will change but the mass of the metal will remain the same. Therefore, the mass of the copper is equal to 1 Kg.
Learn more about conservation of matter, here:
brainly.com/question/23910777
#SPJ2
Final answer:
The mass of the copper sheet after it has been hammered remains 1 kg, as the mass of an object does not change due to changes in shape or size (option A).
Explanation:
The mass of the copper sheet after it has been hammered into a thin sheet remains the same, regardless of its shape or size alterations. The fundamental principle here is the conservation of mass, implying that the mass of an object doesn't change unless material is added to or removed from it. No such addition or removal of material is mentioned in the question.
Therefore, even after the transformation of the 1 kg block of copper into a copper sheet of length 30 cm, the mass of the copper sheet will be 1 kg, corresponding to option A. This is because the question states that it is the same block of copper that has been reformed, so no mass has been lost or gained in the process.
Correct scientific term for a substance that is burned to provide heat?
Instructions: Select the correct answer.
Generators need a source of energy to produce electricity. Which form of energy is a nonrenewable source of energy?
A. hydro (water) energy
B. geothermal energy
C. fossil fuel
D. wind energy
The actual yield of a certain reaction is 34.0 g, while the theoretical yield is 50.0 g. Calculate the percent yield.
The contents of a can of air freshener are gaseous when sprayed, but remain a liquid while inside the can due to ___
I need some help, and I'm pretty sure it's pressure. I'll give brainliest to whoever answers first.
Calculate the amount of heat required to heat a 3.2kg gold bar from 29Celsius to 64Celsius. Specific heat capacity of gold is 0.128J/g Celsius .
The law of universal gravitation states that any two objects in the universe, without exception, a. attract each other. b. repel each other. c. combine to provide a balanced force. d. create friction. im not sure help
Which is the BEST example of refraction? A) An image appears that is exactly like the real object. B) When put into a container, two mediums do not mix together. C) A laser beam looks bent when it passes through glass blocks. D) A concave lens causes an object to appear larger than its actual size. Eliminate
Answer:
C-A laser beam looks bent when it passes through glass blocks
Explanation:
Refraction is the change in the speed of the light when passing from one medium to another with a different refractive index. While changing the medium light appears to change the direction or bent towards the normal - a perpendicular line to the horizontal line.
Fe2O3(s)+3CO(g)⟶2Fe(s)+3CO2(g) How many moles of Fe2O3 are necessary to produce 1.648 mol of CO2?
what changes could be made to optimize the manufacturing process
Comparing the mass of the nucleus with the mass off the protons and mass of the neutrons refers to what
Answer:nada defect
Explanation:
Through a process is known as electrolysis, water can be split into hydrogen and oxygen. What type of reaction is this? Give an explanation for your choice.
Which stage of the cell cycle usually lasts the longest
Based on the law of conservation of energy, which statement is false?