Chemistry Middle School

PLEASE HELP
My Question: How do the number of atoms at the start of a chemical reaction compare to the number of atoms at the end of the reaction? (HINT: Use the Law of Conservation of Mass)


-Please answer in 2-4 sentences.

Answers

Answer 1

Explanation:

As it is a fact that "The law of conservation of matter(mass) says that matter cannot be created or destroyed". In chemical equations, the number of atoms of each element in the reactants must be the same as the number of atoms of each element in the

products.

Answer 2

Answer:

Explanation:

According to the Law of Conservation of Mass, the number of atoms at the start of a chemical reaction is equal to the number of atoms at the end of the reaction. This is because, in a chemical reaction, the total mass of the reactants must be equal to the total mass of the products. Thus, while the way atoms are bonded together may change, the number of atoms of each element remains constant.

the total number of atoms of each element before and after the reaction remains the same. This is because atoms cannot be created or destroyed in a chemical reaction, they can only be rearranged

Related Questions

Which statement describes what is gained or lost during radioactive decay?

Atoms gain other atoms.
Elements take in energy.
Atoms lose smaller particles.
Elements gain smaller particles.

Answers

Answer: The correct statement is: Atoms lose smaller particles during radioactive decay.

Explanation:

Radioactive decay is a process where unstable atomic nuclei lose energy by emitting radiation in the form of particles or electromagnetic waves. As a result of this process, the unstable atoms transform into a different element or isotope. During the decay, the atoms lose smaller particles such as alpha particles, beta particles, or gamma rays. This loss of particles changes the number of protons and neutrons in the nucleus, which leads to the formation of a new element.

statement describes what is gained or lost during radioactive decay: atoms lose smaller particles. That is the third option, as during radioactive decay, the nucleus of an atom can lose subatomic particles, such as alpha or beta particles, which results in the transformation of the original atom into a new atom or a different isotope of the same element.

What is radioactive decay?

Radioactive decay is a process by which the nucleus of an unstable atom loses energy by emitting subatomic particles, such as alpha or beta particles, or electromagnetic radiation, such as gamma rays. This loss of energy can result in the transformation of the original atom into a new atom or a different isotope of the same element.

Hence, the statement describes what is gained or lost during radioactive decay: atoms lose smaller particles, which is the third option.

Learn more about radioactive decay here.

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How do you think scientific discoveries regarding synthetic medicines like aspirin have impacted the pharmaceutical industry?


(thanks!)

Answers

Answer: The discoveries of synthetic medicine have gave the pharmaceutical industry more opportunities to more efficiently assist others. The synthetic medications are more effective and could be more cost efficient for the people taking them and the manufacturers and thus also gives the pharmaceutical industry more relevance in terms of the medical industry and the scientific world.

Explanation: n-a

By providing an easy and inexpensive method to alleviate pain, aspirin began to change the experience and expectations of patients and doctors and ultimately the nature of modern medicine itself
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