Balancing Equations

Front

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?

Back

the mass is the same

Front

In chemical reactions, what does the principle of conservation of mass mean?

Back

Matter is not created or destroyed.

Front

The red numbers in the image below represent ________

Back

coefficients

Front

The blue numbers in the image below represent ________

Back

subscripts

Front

The substances at the beginning of a chemical equation are called the ____

Back

reactants

Front

What is the right part of a chemical equation called? H_{2 +} O₂ --> H₂O

Back

Products

Front

What is the arrow in a chemical equation...
H_{2 +} O₂ --> H₂O

Back

Yields

Front

When balancing equations, a ____ can be placed to the left of a formula of a substance to make the equations balanced.

Back

coefficient

Front

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__Al + __O₂--> __Al₂O₃
Options: 4,1 --> 2, 4,3 --> 4, 3,4 --> 1, 4,3 --> 2

Back

4,3 --> 2

Front

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__H₂SO₃ + __KOH--> __H₂O+ __K₂SO₃

Back

1,2 --> 2,1