Advertisements
Advertisements
Question
Write the chemical formula of the following compound in a step-by-step manner –
Calcium bicarbonate
Advertisements
Solution
Write the formula of
| Calcium bicarbonate | Symbol | Valency |
| Calcium | \[\ce{Ca}\] | \[\ce2^+\] |
| bicarbonate | \[\ce{HCO3}\] | \[\ce1^-\] |
Step I – Write each symbol with its valency.
Positive ion is written first
\[\ce{Ca}^{2+}\] \[\ce{[HCO3]}^{1-}\]
Step II – Interchange the valencies and ignoring (+) and (−) signs.
The Formula is \[\ce{Ca[HCO3]2}\]
APPEARS IN
RELATED QUESTIONS
The valency of aluminium is 3. Write the valency of other radicals present in the following compounds of Aluminium oxide.
Write the molecular formulae of Sodium hydroxide
Write the molecular formulae of Ammonium carbonate.
Copper having electronic configuration 2,8,18,1 exhibits variable valency. Give a reason for the same and name the compound CuCI and CuCl2.
Write the chemical formula of the following compound in a step-by-step manner –
Potassium sulphate
Write the chemical formula of the following compound in a step-by-step manner –
Potassium permanganate
Write the chemical formula of the following compound in a step-by-step manner –
Sodium zincate
Write the chemical formula of the following compound in a step-by-step manner –
Iron [III] sulphur
Complete the statement given below by filling in the blanks with the correct words.
The valency of iron in FeO is _______ of chlorine [chloride] in CaCl2 is ________ and of dichromate in K2 Cr2 O7 is ________.
Match the statements – 1 to 10 below with their correct answers from – A to J.
| Column I | Column II |
| 1. Elements having valency of two. | A: Br1− |
| 2. An anion | B: Divalent |
| 3. A gaseous non-metal | C: Reactants |
| 4. A cation. | D: Ammonium |
| 5. The term used for the substances which take part in the chemical reaction | E: Nitric oxide |
| 6. The meaning of the symbol ‘Δ’ over the arrow in a chemical equation. | F: Nitrogen |
| 7. The chemical name for nitrogen monoxide. | G: Zero |
| 8. A radical containing nitrogen and hydrogen only | H: Nitrous oxide |
| 9. The chemical name for dinitrogen oxide | I: Heat required |
| 10. The valency of noble gases | J: K1+ |
