Chemistry
Give a word equation for each of the following reactions.
Two solids which combine on heating, to give a liquid.
Two gasses which combine to give a solid.
A compound which on heating shows – color change from brown to yellow.
A salt which reacts with ammonium hydroxide to give a reddish-brown precipitate.
An exothermic reaction where both the reactants are gases, one of which is oxygen.
Chemical Equation
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Answer
Carbon + Sulphur ⟶ Carbon disulphide
Ammonia + Hydrogen chloride ⟶ Ammonium chloride
Lead [IV] oxide ⟶ Lead monoxide + Oxygen
Iron (II) chloride + Ammonium hydroxide ⟶ Ammonium chloride + Iron (III) hydroxide
Hydrogen + Oxygen ⟶ Water + Δ
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Related Questions
Give word equations for the following chemical reactions and give the names of the products formed.
(a) Zn + 2HCl ⟶ ZnCl2 + H2
(b) CuO + H2SO4 ⟶ CuSO4 + H2O
(c) Zn + S ⟶ ZnS
(d) ZnCO3 ZnO + CO2
(e) NH3 + HCl ⟶ NH4Cl
Select the correct answer from A, B, C, D and E for each statement given below:
A: Hydrogen
B: Copper [II] oxide
C: Oxygen
D: Copper [II] hydroxide
E: Ammonia
The black residue obtained on heating copper carbonate.
The basic gas obtained when two gases react in presence of a catalyst and the reaction is exothermic.
The gas obtained when potassium chlorate is heated in the presence of a catalyst.
The pale blue precipitate obtained when copper [II] sulphate reacts with sodium hydroxide.
The gas which reacts with oxygen to give a neutral liquid.
Name the following:
The silvery residue obtained on heating mercury [II] oxide.
The gas evolved when dilute acid is added to chalk [limestone].
Two non-metal which react explosively when brought in close contact.
Two gases which react under pressure in presence of a catalyst at elevated temperatures to give a gaseous product.
A catalyst which increases the rate of a chemical reaction.
Give reasons for the following:
Even though rusting is an exothermic reaction, the heat evolved when an iron nail rusts are unnoticeable.
Electrolytic decomposition of water is a reaction involving a change of state.
A characteristic change of colour is seen when a piece of iron is added to copper [II] sulphate solution.
The catalytic oxidation of sulphur dioxide to sulphur trioxide is represented by a double arrow [⇌] between reactants and products, formed in the chemical reaction.
Silver salts are kept in dark coloured bottles.