Question

- Answer the following questions: (a) Write the chemical formula of zinc chromate using criss cross method (b) Write the chemical name of Fe2(SO4)3 using Roman numerals. (C) A metal X having valency +2. What is the formula of its thiosulphate? (d) Write down the possible variable valencies exhibited by Manganese (Mn). (e) Define the term radical. (1) Identify the compound radical from the list given below and write down its chemical formula with Potassium ion. Zincate ion Chloride ion Arsenic ion Oxide ion Sodium ion Bromide ion​

Answer 1

Answer:

a

Explanation:

b Iron(III) sulfate (or ferric sulfate), is a family of inorganic compound with the formula Fe2(SO4)3(H2O)n.