Answers by Yabada
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Answers by Yabada

Answers by Yabada
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Why is oxygen an element ? a it is essential to life b it burn c it combines with hydrogen d it cannot be broken down into a simple substance through chemical means
answered May 20, 2017
0 votes
77.1k views
Gunpowder was first discovered during the renaissance. true false
answered Jan 19, 2017
4 votes
214k views
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