Give suitable activity to represent the following phenomenons: 1.Evolution of gas in a reaction 2.Formation of precipitates 3.Change of colour in a reaction.
Answers
Answered by
2
Answer:
1)For example, when zinc reacts with hydrochloric acid, hydrogen gas is evolved with formation of zinc chloride
2) chemical reaction between potassium chloride and silver nitrate, in which solid silver chloride is precipitated out. ... In the above reaction, a white precipitate called silver chloride or AgCl is formed which is in the solid-state.
3)chemical reaction between copper sulphate solution and iron fillings . the iron when dissolved turns green in colour from blue with little deposits of brownish copper at the bottom.
Similar questions