Question

please help me i need help in Q. 1,3,8,10​

Answer 1

Answer:

chemical formula of bleaching powder is cacoh

Answer 2

Answer:

1. 4 solutions have H+ ions concentrations because it ph value is less than 7
2. Calcium oxychlorie
3. The candle is put off with a pop sound due to the presence of hydrogen gas
4. Na^2Co^3.10H2O(Sodium carbonate decahydrate)