CHEM CFK7: Chemical Equations - Copy

Balancing

100

Balance this equation: H₂ + O₂ → H₂O

2H₂ + O₂ → 2H₂O

200

Balance this equation: N₂ + H₂ → NH₃

N₂ + 3H₂ → 2NH₃

300

Balance this reaction: Al + O₂ → Al₂O₃

4Al + 3O₂ → 2Al₂O₃

400

Balance the equation: C₄H₁₀ + O₂ → CO₂ + H₂O

2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O

Identifying

100

Is the following equation a combination, decomposition, single-replacement, or double-replacement?
CaO + CO₂ → CaCO₃

Combination

200

What type of reaction is this? NaCl + AgNO₃ → NaNO₃ + AgCl

Double Replacement

300

Identify the type of reaction: CaCO₃ → CaO + CO₂

Decomposition

400

What type of reaction is this? C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O

Combustion

Writing

100

Write a balanced chemical equation for the reaction between sodium metal and chlorine gas to form solid sodium chloride.

2Na_(s) + Cl₂_(g) → 2NaCl_(s)

200

Convert the following equation into words:
Zn(s) + CuSO₄(aq) → ZnSO₄(aq) + Cu(s)

Zinc metal reacts with aqueous copper(II) sulfate to form aqueous zinc sulfate and solid copper.

300

Write the chemical equation for the decomposition of potassium chlorate into potassium chloride and oxygen gas.

2KClO₃ → 2KCl + 3O₂(g)

400

Aluminum metal reacts with iron(III) oxide to produce aluminum oxide and iron metal. Write the balanced equation.

2Al + Fe₂O₃ → Al₂O₃ + 2Fe

Compounds

100

What is the correct formula for aluminum sulfide?

Al₂S₃

200

What is the correct name for the covalent compound N₂O₄?

Dinitrogen tetroxide

300

What is the formula for magnesium hydroxide?

Mg(OH)₂

400

What is the correct formula for iron(III) sulfate?

Fe₂(SO₄)₃