First Half of Unit 3

What kind of reaction is this:

4Fe + 3O₂ → 2Fe₂O₃

• Decomposition

• Single Replacement

• Combination/Synthesis

• Double Replacement

Tags

NGSS.MS-PS1-1

The reaction below is an example of?

AgNO₃ + NaCl → AgCl + NaNO₃

• Decomposition

• Single Replacement

• Combustion

• Double Replacement

Tags

NGSS.MS-PS1-5

__ Al + __ FeO → Al₂O₂ + __ Fe

• 1,1,2

• 2,4,2

• 2,1,2

• 2,2,2

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Balance this equation:

__H₂ + __Cl₂ --> __ HCl

• 1,1,2

• 3,1,6

• 1,3,6

• It is balanced

Tags

NGSS.MS-PS1-5

What type of reaction is this?

2HI --> H₂ + I₂

• Double replacement

• Synthesis/Combination

• Decomposition

• Single Replacement

If an element is diatomic it should have a subscript of _____

• it shouldn't have a subscript, it should have a coefficient

• 2, always

• 2, only when it is by itself

Is this an example of a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What kind of reaction is this:

2H₂ + O₂ --> 2H₂O

• synthesis

• decomposition

• double replacement

• single replacement

Tags

NGSS.MS-PS1-2

What kind of reaction is this:

Fe + CuSO₄ -> Cu + FeSO₄

• double replacement

• decomposition

• combustion

• single replacement

Tags

NGSS.MS-PS1-2

What is the left part of a chemical equation called?

2H₂ + O₂ --> 2H₂O

• products

• chemical equation

• yields

• reactants

Tags

NGSS.MS-PS1-5