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Chapter 2: Problem 78

Write the formula for each of the following compounds: a. zinc chloride b. tin(IV) fluoride c. calcium nitride d. aluminum sulfide e. mercury(I) selenide f. silver iodide

Short Answer

Expert verified
The chemical formulas for the given compounds are: a. ZnCl\(_2\) b. SnF\(_4\) c. Ca\(_3\)N\(_2\) d. Al\(_2\)S\(_3\) e. Hg\(_2\)Se f. AgI

Step by step solution

01

Identify the elements and their symbols

The two elements in zinc chloride are zinc (Zn) and chlorine (Cl).
02

Determine the valency of each element

Zinc has a fixed valency of +2 and chlorine has a valency of -1.
03

Combine elements to balance charges

To balance the charges, we need 2 chlorine atoms for each zinc atom. Thus, the formula for zinc chloride is ZnCl\(_2\). #b. Tin(IV) Fluoride#
04

Identify the elements and their symbols

The two elements in tin(IV) fluoride are tin (Sn) and fluorine (F).
05

Determine the valency of each element

Tin has a valency of +4 (as indicated by the roman numeral IV) and fluorine has a valency of -1.
06

Combine elements to balance charges

To balance the charges, we need 4 fluorine atoms for each tin atom. Thus, the formula for tin(IV) fluoride is SnF\(_4\). #c. Calcium Nitride#
07

Identify the elements and their symbols

The two elements in calcium nitride are calcium (Ca) and nitrogen (N).
08

Determine the valency of each element

Calcium has a valency of +2 and nitrogen has a valency of -3.
09

Combine elements to balance charges

To balance the charges, we need 3 calcium atoms and 2 nitrogen atoms. Thus, the formula for calcium nitride is Ca\(_3\)N\(_2\). #d. Aluminum Sulfide#
10

Identify the elements and their symbols

The two elements in aluminum sulfide are aluminum (Al) and sulfur (S).
11

Determine the valency of each element

Aluminum has a valency of +3 and sulfur has a valency of -2.
12

Combine elements to balance charges

To balance the charges, we need 2 aluminum atoms and 3 sulfur atoms. Thus, the formula for aluminum sulfide is Al\(_2\)S\(_3\). #e. Mercury(I) Selenide#
13

Identify the elements and their symbols

The two elements in mercury(I) selenide are mercury (Hg) and selenium (Se).
14

Determine the valency of each element

Mercury has a valency of +1 (as indicated by the roman numeral I) and selenium has a valency of -2.
15

Combine elements to balance charges

To balance the charges, we need 2 mercury atoms and 1 selenium atom. Thus, the formula for mercury(I) selenide is Hg\(_2\)Se. #f. Silver Iodide#
16

Identify the elements and their symbols

The two elements in silver iodide are silver (Ag) and iodine (I).
17

Determine the valency of each element

Silver has a fixed valency of +1 and iodine has a valency of -1.
18

Combine elements to balance charges

The charges for both elements are equal and opposite, so the formula for silver iodide is AgI.

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Most popular questions from this chapter

A binary ionic compound is known to contain a cation with 51 protons and 48 electrons. The anion contains one-third the number of protons as the cation. The number of electrons in the anion is equal to the number of protons plus 1. What is the formula of this compound? What is the name of this compound?

In the periodic table, how many elements are found in each of the following? a. Group 2A b. the oxygen family c. the nickel group d. Group 8A

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The formulas and common names for several substances are given below. Give the systematic names for these substances. a. sugar of lead $\quad \operatorname{Pb}\left(\mathrm{C}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\right)_{2}$ b. blue vitrol \(\quad\) CuSO \(_{4}\) c. quicklime \(\quad \mathrm{CaO}\) d. Epsom salts \(\quad\mathrm{MgSO}_{4}\) e. milk of magnesia \(\quad \operatorname{Mg}(\mathrm{OH})_{2}\) f. gypsum \(\quad \mathrm{CaSO}_{4}\) g. laughing gas \(\quad \mathrm{N}_{2} \mathrm{O}\)

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