Question

pls sent it's answer it's urgent please send fast​

Answer 1

2. (a) .k2So4

(b). CaSo4

(c). NaCl

(d). Na2Co3

(e). NH4Cl2

4. (b) HCl > Acetic acid > H2o

5. (a). pink

(b) Chlorine gas

(c). PH scale

6. In chemistry , water of crystallization of water molecules that are present inside crystal.

Common names are washing soda , soda ash ,soda crystals.

7. (a) . Because it react with Co2 from the atmosphere to produce chlorine and calcium carbonate....

(b). when it reacts with the HCL , producing visible bubbles of hydrogen gas.

I hope it will help you...,.....