Balance Equation Moles Calculations

Authored by Charles Martinez

Chemistry

10th Grade - University

NGSS covered

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Balance the following reaction:
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)

1,2,1,2

2,1,1,2

1,2,1,1

1,2,2,2

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?

5.00 g

7.29

182 g

218 g

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
What mass of H₂ gas is formed when 4.0 moles of HCl is fully reacted with excess Mg?

0.99 g

4.0 g

2.0 g

6.0 g

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many moles of HCl are consumed in the production of 7.5 moles of MgCl₂?

3.8 moles

15 moles

7.5 moles

23 moles

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Balance the following reaction :
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)

1,2,2,2

1,2,1,1

2,1,1,1

2,1,2,1

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of H₂O are needed if 3.20 moles of CaC₂ are used up?

115 g

28.8 g

0.0889 g

6.40 g

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Using the balanced equation in question 5,
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of Ca(OH)₂ would be formed by using up 3.20 moles of CaC₂?

119 g

21.2 g

114 g

237 g

Tags

NGSS.HS-PS1-7

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Balance Equation Moles Calculations

Balance the following reaction:
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
What mass of H₂ gas is formed when 4.0 moles of HCl is fully reacted with excess Mg?

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many moles of HCl are consumed in the production of 7.5 moles of MgCl₂?

Balance the following reaction :
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)

Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of H₂O are needed if 3.20 moles of CaC₂ are used up?

Using the balanced equation in question 5,
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of Ca(OH)₂ would be formed by using up 3.20 moles of CaC₂?

Using the balanced equation in question 5,
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many moles of Ca(OH)₂ would be produced if 3.5 moles of H₂O are consumed?

Balance the following reaction:
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)

Using the balanced equation in question 9,
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)
How many moles of water (H₂O) are produced when 25.0 grams of C₂H₂ are consumed?

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Balance Equation Moles Calculations

Balance the following reaction: Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)

Using the balanced equation in question 1, Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?

Using the balanced equation in question 1, Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)What mass of H₂ gas is formed when 4.0 moles of HCl is fully reacted with excess Mg?

Using the balanced equation in question 1, Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)How many moles of HCl are consumed in the production of 7.5 moles of MgCl₂?

Balance the following reaction : CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)

Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)how many grams of H₂O are needed if 3.20 moles of CaC₂ are used up?

Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)how many grams of Ca(OH)₂ would be formed by using up 3.20 moles of CaC₂?

Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)how many moles of Ca(OH)₂ would be produced if 3.5 moles of H₂O are consumed?

Balance the following reaction: C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)

Using the balanced equation in question 9, C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)How many moles of water (H₂O) are produced when 25.0 grams of C₂H₂ are consumed?

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Balance the following reaction:
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
What mass of H₂ gas is formed when 4.0 moles of HCl is fully reacted with excess Mg?

Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many moles of HCl are consumed in the production of 7.5 moles of MgCl₂?

Balance the following reaction :
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)

Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of H₂O are needed if 3.20 moles of CaC₂ are used up?

Using the balanced equation in question 5,
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of Ca(OH)₂ would be formed by using up 3.20 moles of CaC₂?

Using the balanced equation in question 5,
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many moles of Ca(OH)₂ would be produced if 3.5 moles of H₂O are consumed?

Balance the following reaction:
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)

Using the balanced equation in question 9,
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)
How many moles of water (H₂O) are produced when 25.0 grams of C₂H₂ are consumed?