Chemical Rxns & Balancing Equations_PhySci

Front

What are the products in a chemical reaction?

Back

The substances formed as a result of a chemical reaction.

Front

What are reactants in a chemical equation?

Back

The substances that undergo a chemical change in a reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed before a formula to indicate how many molecules or atoms are involved in the reaction.

Front

What is the purpose of balancing a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What does a subscript in a chemical formula indicate?

Back

The number of atoms of an element in a molecule.

Front

How many oxygen atoms are in the formula 4H₂O₂?

Back

8 oxygen atoms.

Front

What is the law of conservation of mass?

Back

Matter cannot be created or destroyed in a chemical reaction.

Front

What is a chemical equation?

Back

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

Front

What does the arrow in a chemical equation represent?

Back

The direction of the reaction, indicating that reactants are transformed into products.

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.