MOUSTAFA A.

1.     Copper I iodide, CuI, is not stable enough to last long in storage, so it is generally made just prior to use. In can be prepared from copper sulphate and hydriodic acid by the... more

1.     Copper I iodide, CuI, is not stable enough to last long in storage, so it is generally made just prior to use. In can be prepared from copper sulphate and hydriodic acid by the... more

A 700.0 mL gas sample at STP is compressed to a volume of 200. mL when it is bubbled through water to collect it and the temperature are increased to 30.0°C. What is the new pressure of the gas in... more

235, 92 U + 1,0 n -> 94,36 Kr + 139,56 Ba +3X

1.) 3 Cu + 8HNO3 g 3 Cu(NO3)2   + 2 NO + 4 H2OIn the above equation how many moles of NO can be made when 58 moles of HNO3 are consumed? 2.) 2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2OIn the above equation... more

The daily recommended intake of calcium for adolescent females is approximately 1.10 g.  a)   One supplement tablet contains 0.950 g of calcium carbonate. How many tablets would an adolescent... more