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Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o
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Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
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Trộn dung dịch X chứa 0,01 mol Na + 0,0 2 mol mg2 + và x mol HCO3 - với dung dịch Y chứa y mol H + 0...
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