1. Atoms rearrange to form new substances: During a chemical change, the atoms of the reactants rearrange themselves to form new substances. These new substances have different properties from the original substances. This is the main characteristic of a chemical change.

2. Molecules split apart: In a chemical change, the molecules of the reactants break apart and then recombine in different ways to form the products. This is often accompanied by energy changes, as bonds are broken and new ones are formed.

3. The statement "Protons turn into electrons" is incorrect. Protons do not turn into electrons during a chemical change. Protons and electrons are fundamental particles and cannot transform into each other.

4. The statement "Matter changes to a different phase" is not necessarily true for all chemical changes. A phase change (like from solid to liquid or liquid to gas) can occur during a chemical change, but it is not a requirement. A chemical change can occur without a change in the phase of matter.

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1. Atoms rearrange to form new substances: During a chemical change, the atoms of the reactants rearrange themselves to form new substances. These new substances have different properties from the original substances. This is the main characteristic of a chemical change.

2. Molecules split apart: In a chemical change, the molecules of the reactants break apart and then recombine in different ways to form the products. This is often accompanied by energy changes, as bonds are broken and new ones are formed.

3. The statement "Protons turn into electrons" is incorrect. Protons do not turn into electrons during a chemical change. Protons and electrons are fundamental particles and cannot transform into each other.

4. The statement "Matter changes to a different phase" is not necessarily true for all chemical changes. A phase change (like from solid to liquid or liquid to gas) can occur during a chemical change, but it is not a requirement. A chemical change can occur without a change in the phase of matter.

Knowee AI · Accepted Answer

1. Atoms rearrange to form new substances: During a chemical change, the atoms of the reactants rearrange themselves to form new substances. These new substances have different properties from the original substances. This is the main characteristic of a chemical change.

2. Molecules split apart: In a chemical change, the molecules of the reactants break apart and then recombine in different ways to form the products. This is often accompanied by energy changes, as bonds are broken and new ones are formed.

3. The statement "Protons turn into electrons" is incorrect. Protons do not turn into electrons during a chemical change. Protons and electrons are fundamental particles and cannot transform into each other.

4. The statement "Matter changes to a different phase" is not necessarily true for all chemical changes. A phase change (like from solid to liquid or liquid to gas) can occur during a chemical change, but it is not a requirement. A chemical change can occur without a change in the phase of matter.

What happens during all chemical changes? (3 points)Matter changes to a different phase.Atoms rearrange to form new substances.Protons turn into electrons.Molecules split apart.

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