Question

1. For each of the following, convert the word equation into a formula equation, BUT do not balance! (4 pts each = 12 pts)

a) Barium chlorate à Barium chloride + Oxygen






b) Chlorine + Potassium nitride à Nitrogen + Potassium chloride







c) Sodium nitride + Aluminum bromate à Aluminum nitride + Sodium bromate







2. For each of the following, predict the products IN WORDS ONLY! (3 pts each = 18 pts)

a) Calcium + Water à


b) Tin (II) permanganate + Lead(IV)silicate à


c) Magnesium hydroxide à


d) Iron + Sodium oxide à


e) Mercury (I) iodide à


f) Calcium iodide + Chlorine à

g) a) Strontium nitride + Cesium phosphite à

3 / 3
h) C2H5S + O2 à



i) c) Iron (III) carbonate à


j) Magnesium + Acetic acid à


k) Iodine + Calcium à

Answer 1

Answer:

• 1a) BaClO₃(s) → BaCl₂(g) + O₂(g)

• 1b) Cl₂(g) + K₃N(s) → N₂(g) + KCl(s)

• 1c) Na₃N(aq) + Al(BrO₃)₃(aq) → AlN(s) + Na(BrO₃)₃(aq)

• 2a) Calcium hydroxide and hydrogen gas

• 2b) Tin(II) silicate and Lead(IV) permanganate

• 2c) Magnesium oxide and water

• 2d) No product

• 2e) Mercury and iodine

• 2f) Calcium chloride and iodine

• 2g) Strontium phosphite and cesium nitride

• 2h) Carbon dioxide, water, and sulfur dioxide

• 2i) Iron oxide(III) and carbon dioxide

• 2j) Magnesium acetate and hydrogen gas

• 2k) Calcium iodide

Explanation:

1. For each of the following, convert the word equation into a formula equation, BUT do not balance!

a) Barium chlorate → Barium chloride + Oxygen

1. Chemical formulas

Barium chlorate:

• It is a salt: an ionic compound.
• Barium has oxidation state +2
• Chlorate is the ion ClO₃⁻
• Swap the oxidation numbers to write the subscripts: 2 goes to ClO₃ and 1 goes to Ba
• Chemical formula Ba(ClO₃)₂
• It is solid: Ba(ClO₃)₂(s)

Barium chloride:

• It is a salt: an ionic compount
• Barium has oxidation state +2
• Chlorine is in oxidation state -1
• Swap the numbers to write the subscripts: 2 goes to Cl and 1 goes to Ba
• BaCl₂
• It is solid BaCl₂(s)

Oxygen:

• It is a diatomic gas molecule
• O₂(g)

2. Write the unbalanced molecular equation:

• BaClO₃(s) → BaCl₂(s) + O₂(g)

b) Chlorine + Potassium nitride → Nitrogen + Potassium chloride

1. Chemical formulas

Chlorine:

• It is a diatomic gas molecule
• Cl₂(g)

Potassum nitride

• It is a salt

• Potassium has oxidation state +1
• Nitrogen is with oxidation state +3
• Swap the oxidation states
• K₃N
• It is solid: K₃N(s)

Nitrogen:

• It is a diatomic gas
• N₂(g)

Potassium chloride

• It is a salt (ionic compound)
• Potassium has oxidation state +1
• Chlorine is in oxidation state -1
• Swap the oxidation numbers
• KCl
• It is solid: KCl(s)

2. Write the unbalanced molecular equation

• Cl₂(g) + K₃N(s) → N₂(g) + KCl(s)

c) Sodium nitride + Aluminum bromate → Aluminum nitride + Sodium bromate

1. Chemical formulas

Sodium nitride

• It is a salt (ionic compound)
• Sodium has oxidation state +1
• Nitrogen is with oxidation state -3
• Swap the oxidation numbers
• Na₃N
• It is in aqueous solution
• Na₃N (aq)

Aluminum bromate

• Salt
• Aluminum has oxidation state +3
• Bromate is the ion BrO₃⁻
• Swap the oxidation states
• Al(BrO₃)₃ (aq)

Aluminum nitride

• Both Al and N have oxidation state 3, which simply
• AlN(s). It is not soluble in water.

Sodium bromate

• Na(BrO₃)₃ (aq)

2. Write the unbalanced molecular equation

• Na₃N(aq) + Al(BrO₃)₃(aq) → AlN(s) + Na(BrO₃)₃(aq)

This is a long answer with more than 5,000 charaters; thus, I have to add the rest of the explanations on a separate file.

The attached file contains the complete answer.