answer this fast and i will make you brainliest the above pictures
Answers
Answer:
Explanation:
37. the characteristics of acid
when we mix acid with water it gives out hydrogen
acids are sour to taste but you cant always taste an acid
acid when mixed with china rose solution gives of a red brown colour
38. Small amount of hydrochloric acid is not harmful for our stomach but high levels can damage the stomach wall and cause ulcer
to stop this we should not drink water 30 min after and before eating
39. indicators are substances which can indicate whether a substance is acid or base
examples are: litmus paper, turmeric, methyl orange, china rose solution etc
40. if there was turmeric in the curry when reacted with a soap which is basic it turns red.
42. after acid and base reacts and neutralizes each other generally heat is produced because the process releases energy in the form of heat.
43. antacid is a base and neutralizes with the acid in our stomach thus removing the pain and curing you.
44.the same concept applies here. the base in calamine solution reacts and neutralizes the acid un the ant bite which is the cause of itchy sensation.
45.burnt lime which is acidic in nature neutralizes the base in the soil.
46. with a china rose solution
when a base is added it turns yellowish green
when a acid is added it turns reddish brown
wen salt is added it turns pink
thus the shop keeper can solve this problem
47.acids are sour while bases are bitter
acids turn blue litmus red while base turns red litmus blue
acids react with metals while bases don't