Unit 5 Chemistry review

What are the coefficient used to balance the equation below?
__Ag₂O →__ Ag +___O₂

• 2,4,1
• 1,1,1
• 2,1,2
• 2,2,2

Tags

NGSS.HS-PS1-7

Balance this equation.

__CF₄ + __Br₂ --> __CBr₄ + __F₂

• 2,1,2,1

• 1,2,2,1

• 1,2,1,2

• 2,2,2,2

Balance this equation

__Al +__HCl -->__H₂ +__AlCl₃

• 2, 6, 3, 2

• it is already balanced

• 4, 12, 3, 4

• 2, 1, 4, 5

Tags

NGSS.HS-PS1-7

Balance this equation.

__CH₄ + __O₂ --> __CO₂ + __H₂O

• 1,2,1,1

• 2,1,2,1

• 1,2,1,2

• 0,2,0,2

Tags

NGSS.HS-PS1-7

What are the products of this reaction?
Cu+ AgNO₃--> 

• Cu(NO₃)₂+Ag
• CuNO₃ + Ag
• CuAg+NO₃
• Cu+ AgNO₃

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Write a balanced reaction for this reaction
Zn(s) + H₂SO₄(aq) -->

• Zn(SO₄)₂ + H
• ZnSO₄ + H₂
• ZnSO₄ + H
• Zn₂SO₄ + H₂

Tags

NGSS.HS-PS1-7

Write a Balanced Equation for this reaction:
C₂H₄ + 2 O₂ -->

• C₂O₂ + H₄
• CO₂ + HOH
• CO + H
• 2 CO₂ + 2H₂O

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

What type of reaction is Fe + Cl₂ → FeCl₃

• Synthesis

• Decomposition

• Single Replacement

• Combustion

• None of these

What type of reaction is C₂H₂ + O₂ → CO₂ + H₂O

• Synthesis

• Decomposition

• Single Replacement

• Combustion

• None of these

What type of reaction is Ag₂O → Ag + O₂

• Synthesis

• Decomposition

• Single Replacement

• Combustion

• None of these