Write down the name of a compound represented by the following formula: K2SO4

Write down the name of a compound represented by the following formula:

K₂SO₄

एका वाक्यात उत्तर

Potassium sulphate

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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?

Write down the name of a compound represented by the following formula:

KNO₃

Give the name of the element present in the following compound:

Hydrogen bromide

Define: Mass number :

Write the formulae of the following compounds. Also name the elements present in them.

In what form does oxygen gas occur in nature ?

Molecular compounds are usually formed by the combination between :

Give one example of a polyatomic molecule.

Give a reason why –

Helium is considered monoatomic, but hydrogen a diatomic molecule.

State true of false. If false, give the correct statement.

NaCl represents one molecule of sodium chloride.

Two elements sometimes can form more than one compound.