Calculate the number of ions in 42.3g of calcium nitrite. Hint: There are three ions per formula unit in this compound.
5.78x10^23 ions
1.35x10^23 ions
1.93x10^23 ions
5.32x10^-25 ions
3.86x10^23 ions

In which phase(s) do the molecules take the shape of the container?

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?

Which of the following molecules is polar? c3h7oh c2h5cooh