Give the Formula And Valency Of: Chromate ………….…….. .

Give the formula and valency of:
chromate ………….…….. .

One Word/Term Answer

chromate
Formula CrO₄
Valency -2

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Chapter 1 The Language of Chemistry
Exercise 1 (A) | Q 8.2 | Page 9

Fill the following blanks with suitable words :

In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called ....................

Name the elements water is made of. What are the valencies of these elements ? Work out the chemical
formula for water.

If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.

Name the following compounds. Also write the symbols/formulae of the ions present in them :

The formula of a compound is X3Y. The valencies of elements X and Y will be respectively :

The formula of carbonate of a metal M is M₂CO₃.

What will be the formula of its nitride ?

Give the empirical formula of Acetylene C₂H₂

Name the element in the compound and give the formula of the following compound:

Carbonic acid

Name the element in the compound and give the formula of the following compound:

Green vitriol

Name the element in the compound and give the formula of the following compound:

Ethanol