Question

write the chemical formula of carbonic acid in criss
cross method

Answer 1

Answer:

An alternative way to writing a correct formula for an ionic compound is to use the criss-crossmethod. The numerical value of each of the ion charges is crossed over to become the subscript of the other ion. Signs of the charges are dropped. Here we have to find the formula of calcium carbonate by using criss-cross method

Valency of calcium Ca2+=2

Valency of carbonate CO32-=2

Cross multiply the number of radicals.

By applying criss-cross method, the formula will be CaCO3.

Answer 2

Explanation:

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