Give an example of a double displacement reaction other than the one given in Activity 1.10.
Give an example of a double displacement reaction other than the one given in Activity 1.10.
Class 10
Why does the color of copper sulphate solution change when an iron nail is dipped in it?
Why does the color of copper sulphate solution change when an iron nail is dipped in it?
Why does the color of copper sulphate solution change when an iron nail is dipped in it? Read More »
Why is the amount of gas collected in one of the test tubes in Activity 1.7 double of the amount collected in the other? Name this gas.
Why is the amount of gas collected in one of the test tubes in Activity 1.7 double of the amount collected in the other? Name this gas.
A solution of a substance ‘X ‘ is used for white washing.
A solution of a substance ‘X ‘ is used for white washing. i. Name the substance ‘X’ and write its formula.ii. Write the reaction of the substance ‘X’ named in (i) above with water.
A solution of a substance ‘X ‘ is used for white washing. Read More »
Write a balanced chemical equation with state symbols for the following reactions. i. Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.
Write a balanced chemical equation with state symbols for the following reactions. i. Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride. ii. Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.
Write the balanced equation for the following chemical reactions.
Write the balanced equation for the following chemical reactions. i. Hydrogen + Chlorine → Hydrogen chloride ii. Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride iii. Sodium + Water → Sodium hydroxide + Hydrogen
Write the balanced equation for the following chemical reactions. Read More »
Why should a magnesium ribbon be cleaned before burning in air?
Why should a magnesium ribbon be cleaned before burning in air?
Why should a magnesium ribbon be cleaned before burning in air? Read More »