Since a Grignard reagent contains a carbon atom with a partial charge, it acts as a and reacts with the OH of the starting halide, BrCH2CH2CH2CH2OH. This acid-base reaction destroys the Grignard reagent so that addition cannot occur.

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

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tony (lordcaos066)

1 a

2 d

3 a

4 c

explanation:

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error