compound, formulae and equations

Question 1

formula of a zinc ion

Answer 1

Zn2+

Question 2

formula of an ammonium ion

Answer 2

NH4 +

Question 3

formula of a silver ion

Answer 3

Ag+

Question 4

formula of a nitrate ion

Answer 4

NO3 -

Question 5

formula of a carbonate ion

Answer 5

CO3 2-

Question 6

formula of a sulphate ion

Answer 6

SO4 2-

Question 7

formula of a phosphate ion

Answer 7

PO4 3-

Question 8

formula of a hydroxide ion

Answer 8

OH -

Question 9

diatomic atoms

Answer 9

H2 N2 O2

Question 10

what are spectator ions

Answer 10

ions that are not changing state or oxidation number

Question 11

what do binary compounds contain

Answer 11

only two different elements