Unit 1 Review

Front

What is the simplest kind of pure substance?

Back

Element

Front

A pure substance ________ be broken down into simpler matter using physical methods.

Back

can not

Front

Is it possible for these reactants to become this product?

Back

Yes, because the type and number of atoms are the same, just rearranged differently.

Front

What are substances present at the start of a chemical reaction called?

Back

Reactants

Front

Explain the difference in mass for Procedure 1.

Back

One of the products was a gas that escaped into the air.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What are products in a chemical reaction?

Back

Substances formed as a result of a chemical reaction.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.