How many moles of carbon atoms, C, contain the same number of atoms as
(a) 1 mole of copper atoms, Cu,
(b) 2.5 moles of magnesium atoms, Mg, and
(c) 0.13 mole of sulfur atoms, S?

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

What mass of ca(oh)2 is needed to make 1250ml of a .75m solution?

Which type of bonding involves the complete transfer of a valence electron from a less electronegative atom to a more electronegative one?