Conservation of Mass

Front

What is the principle of conservation of mass?

Back

Matter is not created or destroyed in a chemical reaction.

Front

When sodium and chlorine combine to form sodium chloride, what is sodium chloride considered?

Back

Product

Front

If 12g of Carbon reacts with 16g of Oxygen, how much carbon monoxide (CO) is formed?

Back

28 g

Front

In a reaction A + B ----> C, if reactant A has 5g and product C has 9g, how many grams does reactant B have?

Back

4g

Front

What is a sign that a chemical reaction has occurred?

Back

Formation of a gas.

Front

What happens to the total mass of reactants in a chemical reaction?

Back

It remains the same as the total mass of the products.

Front

Define reactants in a chemical reaction.

Back

Substances that undergo change during a chemical reaction.

Front

Define products in a chemical reaction.

Back

Substances that are 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.

Front

What is an example of a physical change?

Back

Melting ice.