What type of reaction is shown here. NaCl + LiF = NaF + Lici*

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

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?

How many valence electrons are in atom of radon?