Ce cantitate de precipitat(BaSO4) se obține prin reacția dintre 196g soluție acid sulfuric 40% cu clorură de bariu?
Se dau masele atomice: A S = 32, A O = 16, A Cu = 64, A H = 1, A Ba =137.
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How many moles of al3+ ions are in 1.25 moles of al2o3

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

In a chemical reaction, the final amount of the products is determined by the a. universal gas law b. law of definite proportions c. air pressure d. temperature e. none of the above me