Question

$\frak\red{ \: ❍For \: Chemistry \: Lavoiser}$
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Following are the chemical formulae of some compounds. List the elements present and the number of atoms in each compound.
i. CaCO₃ ii. KNO₃
iii. H₂SO₄ iv. NaOH

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Answer 1

Explanation:

1) CaCO3

= Calcium + Carbonate

2) KNO3

= Potassium Nitrate

3) H2SO4

= Sulphuric Acid

4) NaOH

= Sodium Hydroxide

here are the elements present in each compound.

So, let's find the number of atoms

Potassium Nitrate: Potassium : 3 atoms, Nitrogen : 3 atoms, and Oxygen : 3 atoms.

Sulphuric Acid : Hydrogen: 2 atoms, Sulphur: 1 atom, and Oxygen: 4 atoms.

Sodium Hydroxide : Sodium: 1 Atom, Oxygen: 1 atom, and Hydrogen: 1 Atom.

Calcium Carbonate: Oxygen : 3 Atoms, Carbon: 1 Atom, and Calcium: 1 atom.

Answer 2

Answer:

i.CaCO3

Calcium carbonate: It is a medication used to prevent or treat low blood calcium levels and also an antacid