Balancing Chemical Equation Alternative Quiz 3-5-21

How many Mn atoms are found in the following compound?

2MnO₄

• 1

• 2

• 4

• 8

How many aluminum atoms are in Al₂(SO₄)₃?

• 1
• 2
• 3
• 4

Is the following equation balanced?
2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

• yes
• no

How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl₂ + H₂

• 1
• 2
• 3
• 4

What law governs the balancing of chemical equations?

• Law of Energy

• Law of Conservation of Matter/Mass

• Law of Gravity

• Law of Matter Movement

What are the coefficients that would properly balance this equation?

__Ca + __H₂O --> __Ca(OH)₂ + __H₂

• 2,1 --> 2,1

• 1,2 --> 1,1

• 1,2 --> 2,4

• 1,2 --> 2,1

What are the coefficients that would properly balance this equation?

__AgNO₃ + __H₂S --> __Ag₂S+ __HNO₃

• 2,1 --> 1,2

• 1,2 --> 1,1

• 1,2 --> 1,2

• 1,2 --> 2,1

What are the coefficients that would properly balance this equation?

__H₂ + __S --> __H₂S

• 1,1 --> 1

• 2,2 --> 2

• 1,2 --> 1

• 1,2 --> 2

Balance the the following equation.

__Zn+__HCl -->__ZnCl₂ +__H₂

• 1,1,2,1

• 1,1,1,2

• 1,2,1,1

• 2,1,1,1

What is the left part of a chemical equation called?

2H₂ + O₂ ---> 2H₂O

• Reactants

• Yields

• Products

• Chemical equation