Write the balanced chemical equations for the following reactions.
(a) Calcium hydroxide + Carbon dioxide \(→\) Calcium carbonate + Water
(b) Zinc + Silver nitrate \(→\) Zinc nitrate + Silver
(c) Aluminium + Copper chloride \(→\) Aluminium chloride + Copper
(d) Barium chloride + Potassium sulphate \(→\) Barium sulphate + Potassium chloride
(a) Calcium hydroxide + Carbon dioxide \(→\) Calcium carbonate + Water
(b) Zinc + Silver nitrate \(→\) Zinc nitrate + Silver
(c) Aluminium + Copper chloride \(→\) Aluminium chloride + Copper
(d) Barium chloride + Potassium sulphate \(→\) Barium sulphate + Potassium chloride
Solution and Explanation
(b) Zn + 2AgNO3 \(→\) Zn(NO3)2 + 2Ag
(c) 2AI + 3CuCl2 \(→\) 2AICI3 + 3Cu
(d) BaCl2 + K2SO4 \(→\) BaSO4 + 2KCl
Top Questions on Chemical Equations
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Methanol is produced by the reversible, gas-phase hydrogenation of carbon monoxide: \[ {CO} + 2{H}_2 \rightleftharpoons {CH}_3{OH} \] CO and H$_2$ are charged to a reactor, and the reaction proceeds to equilibrium at 453 K and 2 atm. The reaction equilibrium constant, which depends only on the temperature, is 1.68 at the reaction conditions. The mole fraction of H$_2$ in the product is 0.4. Assuming ideal gas behavior, the mole fraction of methanol in the product is ____________ (rounded off to 2 decimal places).
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Leaves of the sensitive plant move very quickly in response to ‘touch’. How is this stimulus of touch communicated and explain how the movement takes place?
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