Chemical Reactions Unit Review

What kind of reaction is this:
4Fe  +  3O₂ →   2Fe₂O₃ 

• Synthesis

• Decomposition

• Single Replacement 

• Double Replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When balancing a chemical equation, ONLY the _________ can be changed ...

• subscripts

• coefficients

• chemical formula

• direction of the arrow

Tags

NGSS.HS-PS1-7

In the activity series of metals, which metal(s) will displace silver (Ag) from an acid?

• only metals below silver (Ag)

• only metals from Li to Na

• any metal

• only metals above silver (Ag)

Tags

NGSS.MS-PS1-2

Label the parts of the reaction.

a

b

Reactants

Products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Identify which are the products and reactants

a

b

reactants

products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Identify the products and reactants

a

b

products

reactants

Tags

NGSS.MS-PS1-2

Bubbles form when two or more substances are combined is a (a)   (b)  

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

Olivia and Mason were having a science experiment in the kitchen. Olivia left a glass of milk on the counter overnight as part of their experiment. The next day, they discovered it had gone sour. This is a (a)   change.

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An explosion occurs is a (a)  

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the reactants of a neutralization reaction?

• acid + base

• base + salt

• acid + salt

• acid + water