Balancing Quiz Review

The number that goes in front of a compound when balancing is called a

(a)  

Tags

NGSS.MS-PS1-5

The number that is little and at the bottom right corner that tells you how many atoms in a compound is called a

(a)  

__Na + __Cl₂ --> __NaCl

• 1,1,2
• 2,1,2
• 2,1,1
• already balanced

Tags

NGSS.MS-PS1-5

3 H₂O has ​ (a)   molecules of water and each water contains ​ (b)   hydrogen for ​ (c)   total hydrogen​

• 3
• 2
• 1
• 6
• 4

Tags

NGSS.MS-PS1-1

Balance: ​ (a)   Al + ​ (b)   H₂SO₄ → ​ (c)   Al₂(SO₄)₃ + ​ (d)   H₂ ​

• 2
• 3
• 1
• 4
• 6

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

​Balance: (a)   Fe + ​ (b)   O₂ → ​ (c)   Fe₃O₄

• 3
• 2
• 1
• 4
• 6

Tags

NGSS.MS-PS1-5

Balance: ​ (a)   AlCl₃ + ​ (b)   F₂ → ​ (c)   Cl₂ + ​ (d)   AlF₃

• 2
• 3
• 1
• 4
• 5

Tags

NGSS.MS-PS1-5

What does the Law of Conservation of Mass state?

• Matter cannot be created or destroyed in a chemical reaction.

• Matter can only be destroyed in a chemical reaction.

• Matter can only be created in a chemical reaction.

• Matter can be created and destroyed in a chemical reaction.

Tags

NGSS.MS-PS1-5

Label the parts of the equation

a

b

c

d

e

State of Matter

Products

Yields

Reactants

Reacts with

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Identify the type of chemical reaction

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion