Balancing Equations

How many ATOMS of Oxygen are in 3Fe₂O₃

• 2
• 3
• 6
• 9

Tags

NGSS.MS-PS1-1

How many TOTAL atoms are in 2H₂SO₄

• 2
• 4
• 7
• 14

Tags

NGSS.MS-PS1-1

Is the following equation balanced or unbalanced ? 
Al + O₂ --> Al₂O₃

• Balanced
• Unbalanced

Tags

NGSS.MS-PS1-5

Is the following equation balanced or unbalanced ?

N₂ + 3H₂ --> 2NH₃

• Balanced

• Unbalanced

Tags

NGSS.MS-PS1-5

What does the Law of Conservation of Mass state?

• Matter cannot be gained or lost in a chemical reaction.
• Matter can only be lost in a chemical reaction.
• Matter can only be gained in a chemical reaction.
• Matter can be gained and lost in a chemical reaction. 

Tags

NGSS.MS-PS1-5

Is the following equation balanced?

2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

• balanced

• unbalanced

Tags

NGSS.MS-PS1-5

Is the following reaction balanced?

2CH₃OH + 3O₂ --> 2CO₂ + 4H₂O

• balanced

• unbalanced

Tags

NGSS.MS-PS1-5

Balance this equation- P₄ + O₂ --> P₂O₃

• it is already balanced

• 2, 1, 3

• 1, 2, 3

• 1, 3, 2

Tags

NGSS.MS-PS1-5

Balance this equation.

Mg + Cl₂ --> MgCl₂

• 1, 2,1

• already balanced

• 2,1,1

• 1,1,2

Tags

NGSS.MS-PS1-5

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

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-5