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Given the following data, calculate the energy released by the following reaction:initial temperature of 50.g of aqueous solution #1 and also of 50.g of aqueous solution #2  = 19.0oCfinal temperature after mixing the2 solutions together: 28.2oCAssume that the calorimeter has no heat loss, the density all solutions = 1.00g/mL, and that the specific heat of the resulting aqueous solution is 3.10J/goC.

For the reaction represented by the equation 2H2 + O2® 2H2O, how many moles of water can be produced from 6.0 mol of oxygen?

If 1 inch equals 2.54 cm, how many centimeters equal 1 yard?  hint:  1 yard = 3 ft.

How many milliliters of a 0.171 M solution contain 1.00 g of NaCl? (molar mass of NaCl = 58.44 g/mol)

Which coefficients correctly balance the formula ?

The result of dividing 107 by 10–3 is

A chemical change occurs when

How many minutes are in 1 week?

For 3 bonus points, in the Qualitative Analysis lab, if NaOH was added to the solution and a precipitate redissolves, then the cation could be:

Did you remember to tear up your scratch paper in front of the camera when you have finished the exam?