Reaction of acids - Assessment

1.

Multiple Choice

2 mins

1 pt

Reactions of Acids (Refer to pg 5 of Topic 9 notes)

Which of the following reaction is incorrect?

Acids + Metal → Salt + Hydrogen gas

Acids + Metal carbonate → Salt + Carbon dioxide + Water

Acids + Metal oxide → Salt + Carbon dioxide + Water

Acids + Metal hydroxide → Salt + Water

2.

Multiple Choice

2 mins

1 pt

We will go through with the easier 'WORD EQUATION' first >>>

What is the correct word equation from the reaction between Magnesium and Nitric acid?

Magnesium and Nitric acid →

Magnesium nitrate + Hydrogen gas

Magnesium and Nitric acid →

Magnesium sulfate + Hydrogen gas

Magnesium and Nitric acid →

Magnesium nitrate + Carbon dioxide + Hydrogen gas

Magnesium and Nitric acid →

Magnesium sulfate+ Carbon dioxide + Hydrogen gas

3.

Multiple Choice

2 mins

1 pt

We will go through with the easier 'WORD EQUATION' first >>>

What is the correct word equation from the reaction between Sodium carbonate and Sulfuric acid?

Sodium carbonate and Sulfuric acid → Sodium sulfate + Hydrogen gas

Sodium carbonate and Sulfuric acid → Sodium sulfate + Carbon dioxide + Water

Sodium carbonate and Sulfuric acid → Sodium sulfate + water

Sodium carbonate and Sulfuric acid → Sodium sulfate + Hydrogen gas + Water

4.

Multiple Choice

2 mins

1 pt

We will go through with the easier 'WORD EQUATION' first >>>

What is the correct word equation from the reaction between Magnesium oxide and Phosphoric acid?

Magnesium oxide and Phosphoric acid → Magnesium phosphate + Hydrogen gas

Magnesium oxide and Phosphoric acid → Magnesium phosphate + carbon dioxide + water

Magnesium oxide and Phosphoric acid → Magnesium phosphate + water

Magnesium oxide and Phosphoric acid → Magnesium phosphate + hydrogen gas + water

5.

Multiple Select

2 mins

1 pt

In order to write the chemical formula for the reaction of acids. You would need to know how to identify 1) metal, 2) metal carbonate, 3) metal oxide, and 4) metal hydroxide.

Example of metals are: Mg, K, Na, Pb

Which of the following are metals?

(you may choose more than one answer)

Ag (silver)

Si (silicon)

Cl (chlorine)

Fe (iron)

6.

Multiple Select

2 mins

1 pt

In order to write the chemical formula for the reaction of acids. You would need to know how to identify 1) metal, 2) metal carbonate, 3) metal oxide, and 4) metal hydroxide.

Example of METAL carbonates are: MgCO₃ , K₂CO₃ , Na₂CO₃

Which of the following are metal carbonates?

(you may choose more than one answer)

CO₂

H₂CO₃

PbCO₃

CuCO₃

7.

Multiple Select

2 mins

1 pt

In order to write the chemical formula for the reaction of acids. You would need to know how to identify 1) metal, 2) metal carbonate, 3) metal oxide, and 4) metal hydroxide.

Example of METAL oxide are: MgO , K₂O , Na₂O

Example of METAL hydroxide are: Mg(OH)₂ , KOH , NaOH

Which of the following are metal oxide and metal hydroxide?

(you may choose more than one answer)

ZnO

Na₂CO₃

Fe(OH)₂

MgPO₄

8.

Multiple Choice

2 mins

1 pt

You are now ready to handle 'CHEMICAL EQUATIONS' !!!

(refer to reactions of acids in pg 5 of Topic 9 notes)

Which of the following is a correct chemical equation between Sodium hydroxide and sulfuric acid?

NaOH + H₂SO₄ → Na₂SO₄ + H₂

NaOH + H₂SO₄ → Na₂SO₄ + CO₂ + H₂O

NaOH + H₂SO₄ → Na₂SO₄ + H₂ + H₂O

NaOH + H₂SO₄ → Na₂SO₄ + H₂O

9.

Multiple Choice

2 mins

1 pt

If you got it right, congratulations! If not, do try your best again.

Remember to identify which the acid is reacting to. Is it metal? metal carbonate? metal oxide or metal hydroxide?

(refer to reactions of acids in pg 5 of Topic 9 notes)

Which of the following is a correct chemical equation between Zinc and hydrochloric acid?

Zn + HCl → ZnCl₂ + H₂

Zn + HCl → ZnCl₂ + CO₂ + H₂O

Zn + HCl → ZnCl₂ + H₂ + H₂O

Zn + HCl → ZnCl₂ + H₂O

10.

Multiple Choice

2 mins

1 pt

Another one! Could be harder.

Remember to identify which the acid is reacting to. Is it metal? metal carbonate? metal oxide or metal hydroxide?

(refer to reactions of acids in pg 5 of Topic 9 notes)

Which of the following is a correct between lead carbonate and phosphoric acid?

PbCO₃ + H₃PO₄ → Pb₃(PO₄)₂ + H₂

PbCO₃ + H₃PO₄ → Pb₃(PO₄)₂ + CO₂ + H₂O

PbCO₃ + H₃PO₄ → Pb₃(PO₄)₂ + H₂ + H₂O

PbCO₃ + H₃PO₄ → Pb₃(PO₄)₂ + H₂O

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