Write the balanced chemical equation for the action of concentrated sulphuric acid on copper metal.

The balanced chemical equation for the reaction of potassium permanganate and sulphuric acid with ferrous sulphate to produce ferric sulphate , potassium sulphate , maganese sulphate and water is :

Write balanced chemical equations for the following reactions : (i) dilute sulphuric acid reacts with aluminium powder. (ii) dilute hydrochloric acid reacts with sodium carbonate. (iii) Carbon-dioxide is passed through lime water.

Name the compound formed where ethanol is heated is excess of concentrated sulphuric acid at 443 K. Also write the chemical equation of the reaction stating the role of concentrated sulphuric acid in it. What would happen if hydrogen is added to the product of this reaction in the presence of a catalyst such as potassium or nickel?

Write the balanced chemical equation for the reaction between sodium carbonate and hydrochlorc acid indicating the physical states of reactants and products.

a. Write the balanced chemical equations for the extraction of copper metal from its ore. What is the reducing agent used? b. What is the chemical formed as green coating when copper reacts with atmospheric gases in moist conditions?

Write balanced chemical equations for the following : (i) NaCl is heated with sulphuric acid in the presence of MnO_(2) . (ii) Chlorine gas is passed into a solution of NaI in water.

Write a balanced chemical equation for a chemical combination reaction.

a) Write the balanced chemical equation for the oxidation of acidified ferrous sulphate solution by chlorine.

Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.