When a new substance is formed, what kind of change has taken place? *
Physical Change
Chemi...
Chemistry, 07.05.2021 23:40, aidanwindsor1738
When a new substance is formed, what kind of change has taken place? *
Physical Change
Chemical Change
O Phase Change
O None of the above
Answers: 3
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What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5
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Read the chemical equation. 2c2h2 + 5o2 β 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.
Answers: 3
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