Give reasons for the following : (i) Only one half of water molecule is shown in the formula of POP (ii) Sodium hydrogen carbonate is used as an antacid. (iii) On strong heating, blue coloured copper sulphate crystals turn white.
Answers
Answer:
Reasons:
Explanation:
1.As pop has half molecule it is used in preparation of toys and making surfaces smooth.
2.Sodium hydrogen carbonate is a base. When acidic content increases in stomach we get pain.At that time if we consume sodium hydrogen carbonate which is a base.Acid neutralises with base.That y NaHCo3 is used as an antacid.
3.because of lose of water molecules while heating blue coloured copper sulphate crystals turns white
Explanation:
I) Compound A is calcium oxide or quick lime (), and compound B is calcium hydroxide ().
II) The reaction is as follows:
→
III) This reaction can be classified as an exothermic reaction because it is evolving heat and a combination reaction as two compounds are combining to form a new compound.
This method is used industrially in the manufacturing of cement and when quick lime is mixed with water, it forms calcium hydroxide with the evolution of heat.