Balancing and Types of Chemical Reactions

Front

In a chemical reaction, everything to the right of the arrow is called ______________.

Back

Products

Front

The substances at the beginning of a chemical equation are called the ______________.

Back

Reactants

Front

In the equation 2H2 + O2 -> 2H2O, what are the reactants?

Back

H2 and O2

Front

In the equation 2H2 + O2 -> 2H2O, what are the products?

Back

H2O

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

How many atoms of Hydrogen exist in 2H2O?

Back

4

Front

What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides.

Front

What does it mean to balance a chemical equation?

Back

To adjust coefficients so that the number of atoms of each element is equal on both sides.

Front

In the reaction 2Na + Cl2 -> 2NaCl, how many sodium atoms are on the reactant side?

Back

2

Front

In the reaction 2Na + Cl2 -> 2NaCl, how many chlorine atoms are on the product side?

Back

2