Ionic Compounds

Question 1

Predict the chemical formula of the ionic compound that is most likely to be produced.

aluminum and sulfur

Answer 1

Al2S3

Question 2

cesium and selenium

Answer 2

Cs2Se

Question 3

potassium and fluorine

Answer 3

KF

Question 4

Draw the Lewis structure of the ionic compound that is most likely to be produced

aluminum and sulfur

Answer 4

aluminum and sulfur

number of ions: 5
number of dots: 24
aluminum brackets: no
aluminum charge: 3+
sulfur brackets: yes
sulfur charge: 2−

Question 5

cesium and selenium

Answer 5

cesium and selenium

number of ions: 3
number of dots: 8
cesium brackets: no
cesium charge: 1+
selenium brackets: yes
selenium charge: 2−

Question 6

potassium and fluorine

Answer 6

potassium and fluorine

number of ions: 2
number of dots: 8
potassium brackets: no
potassium charge: 1+
fluorine brackets: yes
fluorine charge: 1−

Question 7

For naming purposes, classify each element as either a fixed-charge metal or a variable-charge metal.

a) Al:

b) Cu:

c) Mn:

d) Rb:

e) Zn:

Answer 7

For naming purposes, classify each element as either a fixed-charge metal or a variable-charge metal.

a) Al: fixed-charge metal

b) Cu: variable-charge metal

c) Mn: variable-charge metal

d) Rb: fixed-charge metal

e) Zn: fixed-charge metal

Question 8

Cr(ClO3)3

Answer 8

chromium (III) chlorate

Question 9

TiF4

Answer 9

titanium (IV) fluoride

Question 10

Zn3(PO4)2

Answer 10

zinc phosphate

Question 11

ammonium carbonate

Answer 11

(NH4)2CO3

Question 12

iron (III) cyanide

Answer 12

Fe(CN)3

Question 13

magnesium chloride

Answer 13

MgCl2

Question 14

What is the chemical formula of a compound that forms from nitrogen and fluorine?

Answer 14

NF3

Question 15

What is the chemical formula of zinc phosphate?

Answer 15

Zn3(PO4)2