Classifying and Balancing Equations

Front

How many Oxygen atoms are in 2SO4?

Back

8

Front

What is a coefficient?

Back

The large number to the left of a formula.

Front

In a chemical equation, what do the coefficients indicate?

Back

The coefficients indicate the number of molecules of each reactant used and the number of molecules of each product made.

Front

Balance this equation: H2 + Cl2 ---> ?

Back

H2 + Cl2 ---> 2HCl

Front

How many Hydrogen atoms are in 4H2O?

Back

8

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What does it mean to balance 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 is a reactant?

Back

A substance that undergoes change in a chemical reaction.

Front

What is a product?

Back

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

Front

What is the difference between a chemical formula and a chemical equation?

Back

A chemical formula represents a substance, while a chemical equation shows the transformation of reactants into products.