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Chemistry LibreTexts

Answers to Practice Finding Name and Formula

1. Which of the following are ionic compounds? Which are covalent compounds? Name each compound.

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Formula

Ionic or Covalent?

Name

a)

MgF2

I

magnesium fluoride

b)

CCl4

C

carbon tetrachloride

c)

NaC2H3O2

I

sodium acetate

d)

Fe(NO3)3

I

iron (III) nitrate

e)

CoPO4

I

cobalt (III) phosphate

f)

Al2S3

I

aluminum sulfide

g)

HCl

C

hydrochloric acid

h)

(NH4)2CO3

I

ammonium carbonate

 

2. Name the following ionic compounds:

  1. Na2SO4     sodium sulfate           
  2. K2S        potassium sulfide
  3. CuNO3     copper(I) nitrate       
  4. Ba3(PO4)2        barium phosphate

 

3. Give the formulas for the following ionic compounds:

  1. aluminum hydroxide     Al(OH)­3       
  2. iron (III) nitride     FeN
  3. magnesium phosphate Mg3(PO4)2       
  4. ammonium sulfate (NH4)2SO4
  5. silver carbonate     Ag2CO3       
  6. manganese (II) nitrate Mn(NO3)2

 

4. Give the formulas for the following covalent compounds:

  1. sulfur trioxide        SO3           
  2. hydrobromic acid        HBr
  3. carbonic acid        H2CO3           
  4. dinitrogen tetrachloride    N2Cl4

 

5.

 

Name

Formula

1

Potassium chloride

KCl

2

Cobalt(II) hydroxide

Co(OH)2

3

Sulfur dioxide

SO2

4

Iron(II) phosphate

Fe3(PO42

5

Acetic acid

HC2H3O2

6

Lithium sulfide

Li2S

7

ammonium carbonate

(NH4)2CO3

8

dinitrogen tetroxide

N2O4

9

silver sulfate

Ag2SO­4

10

magnesium nitrate

Mg(NO32

11

copper(II) bicarbonate

Cu(HCO3)2

12

aluminum phosphide

AlP