change the following sentences in passive form .
9. He pretended to be a baron.
10. His subordinates accused him of various offences.
11. I saw him opening the box.
12. He ordered the police to pursue the thief.
13. One cannot gather grapes from thistles.
14. You never hear of a happy millionaire.
15. The public will learn with astonishment that war is imminen
16. Did you never hear that name?
17. The legend tells us how the castle received its name.
18. Do not insult the weak.
19. Why did he defraud you of your earnings?
Answers
Samples of simulated lake water are exposed to SO2(g). Two graduated cylinders containing samples of simulated lake water had CaCO3(s) added, and dissolves to form Ca2+ ions and CO32- ions. The chemical reaction of water exposed to SO2(g) is:
H2O(l) + S02(g) --> H2S04(aq) (sulphuric acid) , producing Hydronium ions in solution.
Hydronium ions react with the CO32- ions which then produces,
options:
HCO3-(aq) (weak acid)
H2CO3(aq) (weak acid)
HCO3-(aq) (strong acid)
H2CO3(aq) (strong acid)
Answer:
change the following sentences in passive form .
Explanation:
9) it was pretended by him to be a baron
10) Nothing can be gained without effort.
11) he was seen by me opening the box.
12) The police was ordered to purchase the thief by him
13)grapes cannot be gathered from thistles.
14) A happy millionaire is never heard of by you.
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