Chemical Reactions & Equations

Front

What do we call the substances that are present BEFORE a chemical reaction occurs?

Back

Reactants are the starting materials in a chemical reaction.

Front

What does the Law of Conservation of Mass state?

Back

Matter is neither created nor destroyed, therefore the number of atoms in reactants will be identical to the number of atoms in the products.

Front

How many atoms of oxygen (O) are in the reactants of a chemical equation with 1 O?

Back

1

Front

Which of the following are the REACTANTS in our bath bombs?

Back

Citric acid, baking soda, and water are all reactants in bath bombs.

Front

True or False: Physical changes produce new substances.

Back

False. Physical changes do not produce new substances.

Front

What are products in a chemical reaction?

Back

Products are the substances formed as a result of a chemical reaction.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

Front

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

Back

A physical change does not alter the chemical composition of a substance, while a chemical change results in the formation of new substances.

Front

What is an example of a chemical reaction?

Back

An example of a chemical reaction is the reaction between vinegar and baking soda, which produces carbon dioxide gas.

Front

What is meant by 'balancing a chemical equation'?

Back

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.