38 to 45 pic added pls answer
Answers
Answer:
sorry I wasn't able to get the answer of no 39,41,44
Explanation:
but the rest are :-
38. i. sodium chloride
absorb and transport nutrients
maintain blood pressure
maintain the right balance of fluid
ii.sodium bicarbonate (NaHCO3), also called baking soda, bicarbonate of soda, or sodium hydrogen carbonate, white crystalline or powdery solid that is a source of carbon dioxide and so is used as an ingredient in baking powders, in effervescent salts and beverages, and as a constituent of dry-chemical fire extinguishers.
40. Chemical Properties of Bases Bases change the colour of litmus from red to blue. They are bitter in taste. Bases lose their basicity when mixed with acids. Bases react with acids to form salt and water.... They can conduct electricity.
42. The primary distinction between mineral acid and organic acid is that mineral acids are inorganic compounds made up of various chemical element combinations, whereas organic acids are organic molecules made up mostly of carbon and hydrogen atoms.
43. The wastes of many factories contain acids. If they are allowed to flow into the water bodies, the acids can kill fishes and other organisms. The factory wastes are, therefore, neutralised by adding basic substances.
45. The strength of an acid depends upon the extent of ionization. Acetic acid is highly soluble in water but it dissociates partially in the aqueous solution to produce a small amount of H+ ions and therefore. considered as a weak acid.
Hope it helps you