Question

Solve all of them.......... If u give all answers i will mark as brainliest........​

Answer 1

Answer:

1) lichens

2))a) becomes colourless

b)becomes pink

3)stress, spicy foods , drinking alcohol......

4) some acids burn and some don't

5)it Depends on the type of salt but table salt we use is

neutral

6) glycine, glutamic acid ,....

7) hydrogen gas is produced

8) a . sodium hydroxide

b. Potassium hydroxide

c. magnesium hydroxide

d. calcium hydroxide

Answer 2

Answer:

Hey mate here is your answer.

1. Lichens are the source of litmus.
2. When phenolphathelin is added to a (a)acid then the solution turns colourless (b)base then the solution turns blue , purple , red or pink.
3. Acidity in our stomach is caused due to stress , spicy food , drinking too much alcohol and missing meals.
4. Like most caustic chemicals , when acids contact the skin , they cause damage in the form of burn .
5. If a salt prepared from strong acid and weak base it is acidic . If a salt is prepared from a strong acid and a strong base it is neutral and if the salt is prepared froma weak acid or a weak base then also it is netural.
6. The acids obtained from the living beings are known as amino acids.
7. When an acid is reacted with metal then the gas formed is the hydrogen gas.
8. The common names are as follows:-

NaOH:-Sodium Hydroxide

KOH:-Potassium hydroxide

Mg(OH)2:-Magnesium hydroxide

Ca(OH)2:-Calcium hydroxide

Hope this will helps you.

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