Determine the quantity of excess reactant that remains after a reaction if 0.50 mol of bcl3 and 2.1 mol of h2o are reacted

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

What does x represent in the formula for the compound xcl4?