Question

Collect the following saip<br />hydrochloric acid (HCI), sulphuric acid (H SO.), nitric acid (HNO.),<br />acetic acid (CH,COOH), sodium hydroxide (NaOH), calcium<br />hydroxide (Ca(OH),l, potassium hydroxide (KOH), magnesium<br />hydroxide (Mg(OH),], and ammonium hydroxide (NH,OH).<br />Put a drop of each of the above solutions on a watch-glass and<br />test with a drop of the following indicators as shown in Table 2.1.<br />What change in colour did you observe with red litmus, blue litmus,<br />phenolphthalein and methyl orange solutions for each of the<br />solutions taken?​

Answer 1

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Answer 2

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20 Examples of Chemical Reactions in Everyday Life

Here are some broad examples of chemical reactions in daily life:

1. Combustion
2. Photosynthesis
3. Aerobic cellular respiration
4. Anaerobic respiration (including fermentation)
5. Oxidation (including rust)
6. Metathesis reactions (such as baking soda and vinegar)
7. Electrochemistry (including chemical batteries)
8. Digestion
9. Soap and detergent reactions
10. Acid-base reactions
11. Cooking
12. Fireworks
13. Rotting of food
14. Electroplating metals
15. Disinfecting surfaces and contact lenses
16. Drugs
17. Bleaching
18. Hair color
19. Leaves changing color with seasons
20. Salt keeping ice off roads and helping to freeze ice cream

Explanation:

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