Answers

2016-03-11T15:28:58+05:30
Chinese alchemists invented gunpowder by a mistake. he was trying to make elixir but they make explosion.
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2016-03-11T15:32:07+05:30
it was invented in the 9th century in china during the tang dynasty. the earliest record of a written formula appeared in the song dynasty in 11th century.
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plz mark as brainliest. plzzzzzzzz