Balancing equations using moles (HT only)

This lesson, students will write chemical formulae using knowledge of ion charges and balance equations using the same number of atoms rule. Students will also balance equations using moles.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Q1.What is a mole?

1/9

Q2.Which equation would you use to calculate mass?

2/9

Q3.Calculate the mass of 1.5 moles of MgSO₄. Relative atomic mass of Mg = 24; S = 32; O 16

3/9

Q4.Convert 0.72 kg into grams.

4/9

Q5.Convert 648 mg into grams.

5/9

Q6.Calculate the number of moles in 6.6 kg of NaCl. Relative atomic mass Na = 23; Cl = 35.5

6/9

Q7.How many atoms or molecules in a mole?

7/9

Q8.Calculate the number of atoms in 46 g of Na. (Hint - calculate the number of moles first). Relative atomic mass Na = 23.

8/9

Q9.Calculate the number of atoms in 5 moles H₂O.

9/9

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Q1.What is a mole?

1/9

Q2.Which equation would you use to calculate mass?

2/9

Q3.Calculate the mass of 1.5 moles of MgSO₄. Relative atomic mass of Mg = 24; S = 32; O 16

3/9

Q4.Convert 0.72 kg into grams.

4/9

Q5.Convert 648 mg into grams.

5/9

Q6.Calculate the number of moles in 6.6 kg of NaCl. Relative atomic mass Na = 23; Cl = 35.5

6/9

Q7.How many atoms or molecules in a mole?

7/9

Q8.Calculate the number of atoms in 46 g of Na. (Hint - calculate the number of moles first). Relative atomic mass Na = 23.

8/9

Q9.Calculate the number of atoms in 5 moles H₂O.

9/9

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Balancing equations

This quiz will test your knowledge from this lesson

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.What is the formula of sodium chloride? Sodium ion= Na⁺ and Chloride ion = Cl⁻

1/5

Q2.Which of the following equations is balanced?

2/5

Q3.Which of the following equations is balanced?

3/5

Q4.Which number is missing to balance the equation : MgO + ___HCl → MgCl₂ + H₂O

4/5

Q5.Which number is missing to balance the equation : CH₃OH + O₂ → CO₂ + ___H₂O

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Balancing equations

This quiz will test your knowledge from this lesson

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.What is the formula of sodium chloride? Sodium ion= Na⁺ and Chloride ion = Cl⁻

1/5

Q2.Which of the following equations is balanced?

2/5

Q3.Which of the following equations is balanced?

3/5

Q4.Which number is missing to balance the equation : MgO + ___HCl → MgCl₂ + H₂O

4/5

Q5.Which number is missing to balance the equation : CH₃OH + O₂ → CO₂ + ___H₂O

5/5

Lesson summary: Balancing equations using moles (HT only)

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