Question

Which of the following are correct formulas for ionic compounds? For those that are not, give the correct formula. (If incorrect, enter correct formula using the format CO2 for CO₂. If correct, enter correct.)

+ -14 points R14 3.033. My Notes Ask Your Teacher Which of the following are correct formulas for ionic compounds? For those that are not, give the correct formula. (If incorrect, enter correct formula using the format CO2 for CO2. If correct, enter correct.) (a) Li20 (b) Ca20 (c) SrCl2 (d) Ga203

1.) Li2O

2.) Ca2O

3.) SrCl2

4.) Ga2O3

Answer 1

1) Lithium shows the valency +1 and the oxygen shows the 2- and both can combine and forms the lithium oxide and the formula is Li₂O

2) calcium shows the valency +2 and the oxygen shows the 2- and both can combine and forms the calcium oxide and the formula is CaO

3) strontium shows the valency +2 and the chlorine shows the -1 and both can combine and forms the strontium chloride and the formula is SrCl₂

4) gallium shows the valency +3 and the oxygen shows the 2- and both can combine and forms the gallium oxide and the formula is Ga₂O₃

answers =>

a) Li2O = correct

b) CaO

c) SrCl2 = correct

d) Ga2O3 = correct