Determine the formula for a hydrate with the general formula Cug(NO3)bºxH2O using the lab data given below. Show all work with correct units and significant figures. Write the final answer (compound formula) in the box. Hint: the nitrate ion can be considered one component mass of compound: 6.328 g
mass of water evaporated: 1.426 g
mass of copper recovered: 1.654 g

Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j