Balancing Chemical Equations

Front

What is the right part of a chemical equation called?

Back

Products

Front

What is the left part of a chemical equation called?

Back

Reactants

Front

How many HCl molecules do you need to balance the equation: Mg + __HCl ---> MgCl2 + H2?

Back

2

Front

Balance this equation: H2 + Cl2 ---> HCl.

Back

H2 + Cl2 ---> 2HCl

Front

What are the larger numbers that you CAN CHANGE in a chemical equation?

Back

Coefficient

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What does it mean to balance a chemical equation?

Back

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

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules are involved.

Front

What are subscripts in a chemical formula?

Back

Numbers that indicate the number of atoms of an element in a molecule.

Front

What is the law of conservation of mass?

Back

Matter cannot be created or destroyed in a chemical reaction.