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an object is placed 40 cm in front of a concave mirror of focal length 20 cm. a plane mirror is placed at a distance of 10cm in front of a concave mirror. find the final position of the image |
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Answer» 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) |
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