Balancing Chemical Equations

Front

What does the Law of Conservation of Mass say? "During a chemical reaction, mass is neither _______ or destroyed."

Back

created

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

The substances that go into a reaction are called the _______.

Back

reactants

Tags

NGSS.MS-PS1-5

Front

According to the Law of Conservation of Mass, the mass of all the REACTANTS must __________ the mass of all PRODUCTS in a chemical reaction.

Back

equal

Tags

NGSS.MS-PS1-5

Front

What coefficient should be used to make the following equation balanced? N₂+O₂--> __?__NO

Back

2

Tags

NGSS.MS-PS1-5

Front

What is the little number after an element in a chemical equation called?
Example: H₂

Back

Subscript

Front

Which of the following equations are correctly balanced?

12CO₂ +H₂O --> C₆H₁₂O₆ + O₂

,

CO₂ + 9H₂O --> C₆H₁₂O₆ + O₂

,

CO₂ + H₂O --> 3C₆H₁₂O₆ + O₂

,

6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂

Back

6CO₂ + 6H₂O --> C₆H₁₂O₆ + 6O₂

Tags

NGSS.MS-PS1-5

Front

Is the following equation balanced?
4Fe + 3O₂ --> 2Fe₂O₃

Back

yes

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

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

Back

Products

Front

How many elements are in C₆H₁₂O₆?

Back

3

Tags

NGSS.MS-PS1-1

Front

What is the number before a chemical formula called?
Ex: 2H₂ + O₂ --> 2H₂O

Back

Coefficient

Tags

NGSS.MS-PS1-5