Question

name: zocl1. assign oxidation numbers to each atom in the following compounds or ions:example $\text{kclo}_{4}$ +1, +7, -2a. $\text{hf}$b. $\text{cl}_{4}$c. $\text{h}_{2}\text{o}$d. $\text{pi}_{3}$e. $\text{cs}_{2}$f. $\text{na}_{2}\text{o}_{2}$g. $\text{h}_{2}\text{co}_{3}$h. $\text{no}_{2}^{-}$i. $\text{so}_{4}^{2-}$j. $\text{clo}_{2}^{-}$k. $\text{io}_{3}^{-}$2. name each of the following binary molecular compounds:a. $\text{cl}_{4}$b. $\text{so}_{3}$c. $\text{as}_{2}\text{s}_{3}$d. $\text{ncl}_{3}$

Explanation:

Step1: Assign oxidation numbers (1a)

For HF: H = +1, F = -1 (sum = 0)

Step2: Assign oxidation numbers (1b)

For $\text{Cl}_4$: Cl = 0 (elemental form)

Step3: Assign oxidation numbers (1c)

For $\text{H}_2\text{O}$: H = +1, O = -2; $2(+1) + (-2) = 0$

Step4: Assign oxidation numbers (1d)

For $\text{PI}_3$: P = +3, I = -1; $(+3) + 3(-1) = 0$

Step5: Assign oxidation numbers (1e)

For $\text{CS}_2$: C = +4, S = -2; $(+4) + 2(-2) = 0$

Step6: Assign oxidation numbers (1f)

For $\text{Na}_2\text{O}_2$: Na = +1, O = -1; $2(+1) + 2(-1) = 0$

Step7: Assign oxidation numbers (1g)

For $\text{H}_2\text{CO}_3$: H = +1, C = +4, O = -2; $2(+1) + (+4) + 3(-2) = 0$

Step8: Assign oxidation numbers (1h)

For $\text{NO}_2^-$: N = +3, O = -2; $(+3) + 2(-2) = -1$

Step9: Assign oxidation numbers (1i)

For $\text{SO}_4^{2-}$: S = +6, O = -2; $(+6) + 4(-2) = -2$

Step10: Assign oxidation numbers (1j)

For $\text{ClO}_2^-$: Cl = +3, O = -2; $(+3) + 2(-2) = -1$

Step11: Assign oxidation numbers (1k)

For $\text{IO}_3^-$: I = +5, O = -2; $(+5) + 3(-2) = -1$

Step12: Name binary compound (2a)

$\text{Cl}_4$: Tetrachlorine (elemental molecule)

Step13: Name binary compound (2b)

$\text{SO}_3$: Sulfur trioxide

Step14: Name binary compound (2c)

$\text{As}_2\text{S}_3$: Diarsenic trisulfide

Step15: Name binary compound (2d)

$\text{NCl}_3$: Nitrogen trichloride

Answer:

Part 1: Oxidation Numbers

a. +1, -1
b. 0
c. +1, -2
d. +3, -1
e. +4, -2
f. +1, -1
g. +1, +4, -2
h. +3, -2
i. +6, -2
j. +3, -2
k. +5, -2

Part 2: Binary Compound Names

a. Tetrachlorine
b. Sulfur trioxide
c. Diarsenic trisulfide
d. Nitrogen trichloride