3x 1023 molecules of element z have a mass of 38 g. what is the mass of 1 mole?

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Which element would mostly likely have an electron affinity measuring closest to zero