Please help. Enter your answer in the provided box. Calculate the heat released when 73.0 g of steam at 126.0°C is converted to water at 40.0°C. Assume that the specific heat of water is 4.184 J/g • °C, the specific heat of steam is 1.99 J/g • °C, and = 40.79 kJ/mol for water.

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

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.

Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .