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08-05-2018
Chemistry

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Question 13 unsaved the nonmetals in groups 5a, 6a, and 7a: question 13 options: lose electrons when they form ions. form ions with charges of 3-, 2-, and 1-, respectively. form positively charged ions. form ions with a numerical charge equal to their group number.

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17-05-2018

How does the law of conservation of mass apply to this reaction: C2H4 + O2 → H2O + CO2?

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