Question

3. What is descaling?
4. What are neutral substances?​

Answer 1

Answer:

you have problems with your heating system, you need to descale it thoroughly"

Explanation:

Neutral substances are neither acidic nor basic. An acid has the hydrogen ions and the base has the hydroxyl ions so on this basis neutral substances have equal no. of these ions. The most common example of neutral substance is water.

Answer 2

Answer:

descaling agent or chemical descaler is a liquid chemical substance used to remove limescale from metal surfaces in contact with hot water, such as in boilers, water heaters, and kettles. Limescale is either white or brown in colour due to the presence of iron compounds. Glass surfaces may also exhibit scaling stains, as can many ceramic surfaces present in bathrooms and kitchen, and descaling agents can be used safely to remove those stains without affecting the substrate since both ceramics and glass are unreactive to most acids.[1]