Unit 3 Skills Review

Identify: Reactants, Products, Coefficient, subscript, Yields

a

b

c

d

e

subscript

Coefficient

yields

Products

Reactants

Tags

NGSS.HS-PS1-7

Write formula for Manganese II Sulfate

Answer explanation

Mn +2 SO4 -2

Write formula for Sr + O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Write formula for K + S

Match the type of chemical reaction below.

• BaCl_2​+2KI −> 2KCl + BaI_2​

• Synthesis reaction

• Decomposition reaction

• CH₄​+O₂​→CO₂​+H_2​O

• Single displacement reaction

• 2KI −> 2K + I₂​  

• Combustion reaction

• Pb + FeSO₄ ----> PbSO₄ + Fe

• Double displacement reaction

Write formula for Copper II + Sulfide

Predict, balance and complete:

C3H8 + O2 ----->

What type of reaction was the previous one?

Balance this equation:

​ (a)   Fe + ​ (b)   O₂ --> ​ (c)   Fe₂O₃

• 4
• 3
• 2
• 1
• 0

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Number of C: ​ (a)  

Number of H: ​ (b)  

Number of O: ​ (c)  

• 4
• 6
• 8
• 2
• 3
• 1
• 5
• 7
• 9
• 10

Tags

NGSS.HS-LS1-6

NGSS.HS-LS1-7

NGSS.HS-LS2-5