Q5 C] INLET FOR
HARD WATER
HARD WATER
PERMUTIT
-GLASS WOOL
OUTLET FOR
SOFT WATER
i. For what purpose, the above process is used?
ii. What is the general formula used for the substance?
iii. What is the role of zeolite?
iv. What is used to regenerate the permutit, when it is no longer active?
v. Mention any two advantages of hard water.

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?