write the formula for the following ionic compounds:
17. potassium bromide
18. calcium sulfate
19. copper (ii) acetate
20. zinc nitrate
21. ammonium chloride
22. barium hydroxide
23. tin (iv) oxide

write the name of the following ionic compounds: watch for roman numerals
24. sno₂
25. mg₃n₂
26. niso₄
27. cr₂o₃
28. ag₂co₃
29. cocl₃
30. ba(c₂h₃o₂)₂

calculate the molar masses for each of the formulas listed. don’t forget units!!!
31. a. na₂so₄ b. k₃po₄ c. al₂(co₃)₃

Question

write the formula for the following ionic compounds:
17. potassium bromide
18. calcium sulfate
19. copper (ii) acetate
20. zinc nitrate
21. ammonium chloride
22. barium hydroxide
23. tin (iv) oxide

write the name of the following ionic compounds: watch for roman numerals
24. sno₂
25. mg₃n₂
26. niso₄
27. cr₂o₃
28. ag₂co₃
29. cocl₃
30. ba(c₂h₃o₂)₂

calculate the molar masses for each of the formulas listed. don’t forget units!!!
31. a. na₂so₄  b. k₃po₄  c. al₂(co₃)₃

Accepted Answer

### Question 17: Potassium bromide
# Explanation:
## Step1: Identify ions
Potassium ($	ext{K}^+$), bromide ($	ext{Br}^-$).

## Step2: Balance charges
$+1 + (-1) = 0$, so 1:1 ratio.

# Answer: $	ext{KBr}$

### Question 18: Calcium sulfate
# Explanation:
## Step1: Identify ions
Calcium ($	ext{Ca}^{2+}$), sulfate ($	ext{SO}_4^{2-}$).

## Step2: Balance charges
$+2 + (-2) = 0$, so 1:1 ratio.

# Answer: $	ext{CaSO}_4$

### Question 19: Copper (II) acetate
# Explanation:
## Step1: Identify ions
Copper (II) ($	ext{Cu}^{2+}$), acetate ($	ext{C}_2	ext{H}_3	ext{O}_2^-$).

## Step2: Balance charges
$+2 + 2(-1) = 0$, so 1:2 ratio.

# Answer: $	ext{Cu(C}_2	ext{H}_3	ext{O}_2	ext{)}_2$

### Question 20: Zinc nitrate
# Explanation:
## Step1: Identify ions
Zinc ($	ext{Zn}^{2+}$), nitrate ($	ext{NO}_3^-$).

## Step2: Balance charges
$+2 + 2(-1) = 0$, so 1:2 ratio.

# Answer: $	ext{Zn(NO}_3	ext{)}_2$

### Question 21: Ammonium chloride
# Explanation:
## Step1: Identify ions
Ammonium ($	ext{NH}_4^+$), chloride ($	ext{Cl}^-$).

## Step2: Balance charges
$+1 + (-1) = 0$, so 1:1 ratio.

# Answer: $	ext{NH}_4	ext{Cl}$

### Question 22: Barium hydroxide
# Explanation:
## Step1: Identify ions
Barium ($	ext{Ba}^{2+}$), hydroxide ($	ext{OH}^-$).

## Step2: Balance charges
$+2 + 2(-1) = 0$, so 1:2 ratio.

# Answer: $	ext{Ba(OH)}_2$

### Question 23: Tin (IV) oxide
# Explanation:
## Step1: Identify ions
Tin (IV) ($	ext{Sn}^{4+}$), oxide ($	ext{O}^{2-}$).

## Step2: Balance charges
$+4 + 2(-2) = 0$, so 1:2 ratio.

# Answer: $	ext{SnO}_2$

### Question 24: $	ext{SnO}_2$
# Brief Explanations:
Sn is tin, O is oxygen. Tin’s charge: $4+ $ (from $2	imes(-2) + x = 0 	o x=+4$). So tin (IV) oxide.

# Answer: Tin (IV) oxide

### Question 25: $	ext{Mg}_3	ext{N}_2$
# Brief Explanations:
Mg is magnesium, N is nitrogen. Magnesium is $+2$, nitrogen is $-3$. Name: magnesium nitride.

# Answer: Magnesium nitride

### Question 26: $	ext{NiSO}_4$
# Brief Explanations:
Ni is nickel, $	ext{SO}_4^{2-}$ is sulfate. Nickel’s charge: $+2$ (from $+2 + (-2) = 0$). So nickel (II) sulfate.

# Answer: Nickel (II) sulfate

### Question 27: $	ext{Cr}_2	ext{O}_3$
# Brief Explanations:
Cr is chromium, O is oxygen. Chromium’s charge: $3+$ (from $2x + 3	imes(-2) = 0 	o x=+3$). So chromium (III) oxide.

# Answer: Chromium (III) oxide

### Question 28: $	ext{Ag}_2	ext{CO}_3$
# Brief Explanations:
Ag is silver, $	ext{CO}_3^{2-}$ is carbonate. Silver is $+1$ (from $2	imes(+1) + (-2) = 0$). So silver carbonate.

# Answer: Silver carbonate

### Question 29: $	ext{CoCl}_3$
# Brief Explanations:
Co is cobalt, Cl is chlorine. Cobalt’s charge: $3+$ (from $+3 + 3	imes(-1) = 0$). So cobalt (III) chloride.

# Answer: Cobalt (III) chloride

### Question 30: $	ext{Ba(C}_2	ext{H}_3	ext{O}_2	ext{)}_2$
# Brief Explanations:
Ba is barium, $	ext{C}_2	ext{H}_3	ext{O}_2^-$ is acetate. Barium is $+2$, acetate is $-1$ (2 acetates balance $+2$). So barium acetate.

# Answer: Barium acetate

### Question 31a: $	ext{Na}_2	ext{SO}_4$
# Explanation:
## Step1: Molar masses
Na: $22.99\ 	ext{g/mol}$, S: $32.07\ 	ext{g/mol}$, O: $16.00\ 	ext{g/mol}$.

## Step2: Calculate
$2	imes22.99 + 32.07 + 4	imes16.00 = 45.98 + 32.07 + 64.00 = 142.05\ 	ext{g/mol}$.

# Answer: $142.05\ 	ext{g/mol}$

### Question 31b: $	ext{K}_3	ext{PO}_4$
# Explanation:
## Step1: Molar masses
K: $39.10\ 	ext{g/mol}$, P: $30.97\ 	ext{g/mol}$, O: $16.00\ 	ext{g/mol}$.

## Step2: Calculate
$3	imes39.10 + 30.97 + 4	imes16.00 = 117.30 + 30.97 + 64.00 = 212.27\ 	ext{g/mol}$.

# Answer: $212.27\ 	ext{g/mol}$

### Question 31c: $	ext{Al}_2(	ext{CO}_3)_3$
# Explanation:
## Step1: Molar masses
Al: $26.98\ 	ext{g/mol}$, C: $12.01\ 	ext{g/mol}$, O: $16.00\ 	ext{g/mol}$.

## Step2: Calculate
$2	imes26.98 + 3	imes(12.01 + 3	imes16.00) = 53.96 + 3	imes(12.01 + 48.00) = 53.96 + 3	imes60.01 = 53.96 + 180.03 = 233.99\ 	ext{g/mol}$.

# Answer: $233.99\ 	ext{g/mol}$

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Question 17: Potassium bromide

Step1: Identify ions

Step2: Balance charges

Step1: Identify ions

Step2: Balance charges

Step1: Identify ions

Step2: Balance charges

Answer:

Question 18: Calcium sulfate