Write the chemical formula of the following: Sodium hydroxide NaOH Potassium oxide _____ Ammonium nitrate _____ Sodium nitrate _____ Magnesium chloride _____ Zinc chloride _____ Ammonium hydroxide _____ Potassium carbonate _____ Magnesium nitrate _____ Calcium bicarbonate _____ Calcium bisulphite _____ Calcium oxide _____ Aluminium sulphide _____ Zinc oxide _____ Calcium [I] oxide _____ Magnesium sulphate _____ Sodium sulphate _____ Iron [III] sulphate _____

A chemical formula is the symbolic representation of the composition of a compound. Therefore, the formula of the given compounds can be given as, Chemical name Chemical formula Sodium hydroxide NaOH Sodium nitrate NaNO 3 Ammonium hydroxide NH 4 OH Calcium bicarbonate CaCO 3 Aluminium sulphide Al 2 S 3 Magnesium sulphate MgSO 4 Alkali metals have +1 valency and alakaline earth metals hav +2 vallency. Chemical name Chemical formula Potassium oxide K 2 O Magnesium chloride MgCl 2 Potassium carbonate K 2 CO 3 Calcium bisulphite Ca ( HSO 3 ) 2 Zinc oxide ZnO Sodium sulphite Na 2 SO 3 Iron exhibits variable valency. Chemical name Chemical formula Ammonium nitrate NH 4 NO 3 Zinc chloride ZnCl 2 Magnesium nitrate Mg ( NO 3 ) 2 Calcium oxide CaO Copper (I) oxide Cu 2 O Iron (III) sulphate Fe 2 ( SO 4 ) 3

Write the word equation for the following: 2 Al + 3 Cl 2 → 2 AlCl 3

The given reaction is the reaction of aluminium with chlorine. The word equation can be given as, Aluminium + Chlorine → Aluminium chloride

Write the word equation for the following: 2 Mg + O 2 → 2 MgO

The given reaction is the reaction of magnesium and oxide. Therefore, the word equation can be given as, Magnesium + Oxygen → Magnesium oxide .

Write the word equation for the following: Zn + H 2 SO 4 → ZnSO 4 + H 2

The given reaction is the reaction of zinc and sulphuric acid. Therefore, the word equation can be given as, Zinc + Sulphuric acid → Zinc sulphate + Hydrogen

Write the word equation for the following: Fe + S → FeS

The given reaction is the reaction of iron and sulphur and the word equation can be given as, Iron + Sulphur → Iron sulphide

Write the word equation for the following: Mg + 2 HCl → MgCl 2 + H 2

The given reaction is the reaction of magnesium with hydrochloric acid. Its word equation can be given as, Magnesium + Hydrochloric acid → Magnesium chloride + Hydrogen

Write the word equation for the following: 4 Na + O 2 → 2 Na 2 O

The given reaction is the reaction of sodium and oxygen. Its word equation can be given as, Sodium + Oxygen → Sodium oxide

Write the word equation for the following: CO 2 + H 2 O → H 2 CO 3

The given reaction is the reaction of carbon dioxide with water. Its word equation can be given as, Carbon dioxide + Water → Carbonic acid

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Fill in the symbol & ion [symbol with valency]

Important Questions on For Your Practice - Symbols, Valencies, Formulas, Word Equations

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Simplified Chemistry>Chapter 8 - For Your Practice - Symbols, Valencies, Formulas, Word Equations>FOR YOUR PRACTICE-Symbols, valencies, formulas, word equations

Write the chemical formula of the following:

Sodium hydroxide	$NaOH$	Potassium oxide	_____	Ammonium nitrate	_____
Sodium nitrate	_____	Magnesium chloride	_____	Zinc chloride	_____
Ammonium hydroxide	_____	Potassium carbonate	_____	Magnesium nitrate	_____
Calcium bicarbonate	_____	Calcium bisulphite	_____	Calcium oxide	_____
Aluminium sulphide	_____	Zinc oxide	_____	Calcium [I] oxide	_____
Magnesium sulphate	_____	Sodium sulphate	_____	Iron [III] sulphate	_____