Balancing Chemical Equations

Balancing Chemical Equations

What is a molecule?

LET'S TAKE IT STEP BY STEP AND PRACTICE

Multiple Choice

LOOKING AT JUST THE SUBSCRIPTS, TELL ME HOW MANY CARBON ATOMS ARE LSITED

C12H22O11

• 11

• 22

• 12

• 1

Multiple Choice

LOOKING AT THE COEFFICIENT , TELL ME HOW MANY BROMINE ATOMS ARE LISTED: 12NaBr

• 1

• 0

• 12

• 24

Multiple Choice

LOOKING AT THE COEFFICIENTS AND THE SUBSCRIPTS, TELL ME HOW MANY OXYGEN ATOMS ARE LISTED:

3CO2

• 3

• 2

• 6

• 1

Multiple Choice

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

• 1
• 2
• 3
• 4

Multiple Choice

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

• 1
• 2
• 3
• 4

Multiple Choice

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

• yes
• no

Multiple Choice

Is this balanced?
Al + O₂ → 2Al₂O₃

• Yes
• No