Answer in one word.
1) Name the acid that is present in lemon juice.
2) Name the particle that can neither be created nor be destroyed.
3) Name the mineral that is made up of hydrated magnesium silicate.
Complete the analogy given below.
10) Soaps: vegetable oils with sodium hydroxide:: Detergents: ______________
11) Vitamin B12: __________:: Aspirin: Inflammation
12) Sodium hydroxide: Drain cleaner:: __________: Base for mineral makeup
Differentiate between the following with the help of the parameters given within the
brackets.
13) Terylene and Rayon (Composition)
14) Hard water and soft water (Action with soap)
Define the following term.
15) Medicines
Answers
i don't know all the answer but i know few of them.
Explanation:
(1) citric acid
(2) atom
(3) talc
(15) 1 : a substance or preparation used in treating disease. 2a : the science and art dealing with the maintenance of health and the prevention, alleviation, or cure of disease. b : the branch of medicine concerned with the nonsurgical treatment of disease.
Answer:
- citric acid
- atoms
- talc
10. kerosene
11. anti inflammatory
12. homes
14. Soap produces a good lather in “soft” water. Soft water does not contain any dissolved calcium or magnesium ions. Soap does not produce a good lather in “hard” water.When soap is added to hard water, the Ca2+ and Mg2+ ions present in hard water react with soap. ... The insoluble scum sticks on the clothes and so the cleaning capacity of soap is reduced. The cleaning action of soap is very effective in soft water because it contains negligible calcium and magnesium ions.
15. the science of preventing and treating illness
Explanation:
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