Question

Fill in the name and empirical formula of each ionic compound that could be formed from the ions in this table: Some ionic compounds empirical formula cation anion name of compound xo? Sna- 107 202- OH

Answer 1

Given

Cation is Sn²⁺ ​​​​​​

Anion is IO₄^-

When these two cation and anion combine they exchange their charges

The 2 will be coming down to (IO4) and 1 will be coming down to Sn

It becomes Sn(IO4)2

Hence the empirical formula will be

Sn(IO₄​​​​​)₂

Name of the compound is

Tin(II) Periodate

Cation is Cr²⁺

Anion is CO₃^2-

When these cation and anion combine they exchange their charges

But here both have equal charges so it gets cancelled out and the resulting formula is CrCO3

Empirical formula is CrCO3

Name of the compound is

Chromium(II) Carbonate

Cation is Zn²⁺

Anion is OH^-

When these cation and anion combine they exchange their charges

The 2 will be coming down to OH and 1 will be coming down to Zn

It becomes Zn(OH)₂

Hence the empirical formula will be

Zn(OH)₂

Name of the compound is

Zinc hydroxide

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