Question 1

Which of the following is the correct formula for sodium chloride, an ionic compound formed from sodium and chlorine?

Accepted Answer

$$\mathrm{NaCl}$$

Question 2

Which of the following is the correct name for the compound with the formula $$\mathrm{CO_2$}$$?

Accepted Answer

Carbon dioxide

Question 3

A student mixes solutions of silver nitrate ($$\mathrm{$$AgNO_3$$}) $$and sodium chloride ($$\mathrm{NaCl}). A $$white precipitate forms. Which balanced symbol equation represents this reaction?

Accepted Answer

$$\mathrm{$$AgNO_3$$ + NaCl \rightarrow AgCl + $$NaNO_3$$}$$

Question 4

Which of the following is the correct ionic equation for the precipitation of silver chloride from aqueous solutions?

Accepted Answer

$$\mathrm{Ag^+ (aq) + Cl^- (aq) \rightarrow AgCl (s)}$$

Question 5

Which of the following is the correct formula for magnesium oxide, an ionic compound formed from magnesium and oxygen?

Accepted Answer

$$\mathrm{MgO}$$

Question 6

What is the correct name for the compound with the formula $$\mathrm{H_2O}$$?

Accepted Answer

Water

Question 7

Which of the following is the correct formula for calcium chloride, an ionic compound formed from calcium and chlorine?

Accepted Answer

$$\mathrm{$$CaCl_2$$}$$

Question 8

A student writes the word equation: 'hydrogen + oxygen $$\rightarrow$$ water'. Which is the correct balanced symbol equation for this reaction?

Accepted Answer

$$\mathrm{2H_2 + O_2$ \rightarrow 2H_2O}$$

Question 9

Which of the following is the correct formula for ammonia, a covalent compound?

Accepted Answer

$$\mathrm{NH_3$}$$

Question 10

Which of the following is the correct name for the compound with the formula $$\mathrm{Na_2SO_4}$$?

Accepted Answer

Sodium sulfate

Question 11

A student is asked to construct a balanced symbol equation for the reaction between hydrochloric acid and sodium hydroxide. Which is correct?

Accepted Answer

$$\mathrm{HCl + NaOH \rightarrow NaCl + H_2O}$$

Question 12

Which of the following is the correct ionic equation for the neutralization reaction between hydrochloric acid and sodium hydroxide?

Accepted Answer

$$\mathrm{H^+ (aq) + OH^- (aq) \rightarrow H_2O (l)}$$

Question 13

Which of the following is the correct formula for potassium nitrate, an ionic compound?

Accepted Answer

$$\mathrm{$$KNO_3$$}$$

Question 14

Which of the following is the correct name for the compound with the formula $$\mathrm{CH_4$}$$?

Accepted Answer

Methane

Question 15

A student is asked to write the formula for aluminum oxide. Which is correct?

Accepted Answer

$$\mathrm{Al_2O_3}$$

Question 16

Which of the following is the correct balanced symbol equation for the reaction of calcium carbonate with hydrochloric acid?

Accepted Answer

$$\mathrm{$$CaCO_3$$ + 2HCl \rightarrow $$CaCl_2$$ + CO_2$ + H_2O}$$

Question 17

Which of the following is the correct formula for sulfuric acid?

Accepted Answer

$$\mathrm{H_2SO_4}$$

Question 18

Which of the following is the correct name for the compound with the formula $$\mathrm{NH_4Cl}$$?

Accepted Answer

Ammonium chloride

Question 19

A student is asked to write the ionic equation for the reaction between barium chloride and sodium sulfate, which forms a white precipitate. Which is correct?

Accepted Answer

$$\mathrm{Ba$$^{2+}$$ (aq) + SO_4$^{2-} (aq) \rightarrow $$BaSO_4$$ (s)}$$

Naming Chemical Compounds and Writing Chemical Equations

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