In 1871, a Russian Chemist, Dimitri Mendeleev, gave a useful scheme for classification of elements. He presented the first regular periodic table in which elements of similar chemical properties were arranged in eight vertical columns called groups. The horizontal rows of table were called periods. He arranged elements in ascending order of their atomic masses and found that elements having similar chemical properties appeared at regular intervals. This observation was called Periodic Law.
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Depends on the situation. If the nucleophile is already in excess, then no the reaction will not occur faster
Explanation:
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Because during combustion reaction, heat energy is released and it's this energy that is converted to work
