14 42 46 55 90 96 problem 55 use the heat formula (Q) to determine heat released in cooling then heat of vaporization of water to determined the heat released in condensation

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.

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

To separate a mixture of hard candies nd marbles the most efficient method would be