Chemical Reactions assessment

Front

What is a chemical reaction?

Back

A process where substances (reactants) undergo a transformation to form new substances (products).

Front

What are the signs of a chemical reaction?

Back

Signs include color change, gas production, temperature change, and formation of a precipitate.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the unit of measure for the amount of matter?

Back

Mass.

Front

How many elements are in the compound C6H12O6?

Back

3 elements: Carbon (C), Hydrogen (H), and Oxygen (O).

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is a reactant?

Back

A substance that undergoes a chemical change in a reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is an example of a chemical reaction?

Back

Combining vinegar and baking soda to produce carbon dioxide gas.