Choose the minerals which can cause hardness of water a. cacl2 b. mg[o

1.	Choose the minerals which can cause hardness of water a. cacl2 b. mg[oh]2 c.mgs04 d. both 1&3
Answer» ANSWER: d. both 1 and 3 is the CORRECT answer

Choose the minerals which can cause hardness of water a. cacl2 b. mg[oh]2 c.mgs04 d. both 1&3

Answer»

d. both 1 and 3 is the CORRECT answer