What is the mass number of an atom with 8 protons 10 neutrons, and 8
electrons

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

How many lone pairs of electrons are on the central atom of no3- and what is the molecular shape? one, trigonal planar zero, trigonal pyramidal zero, trigonal planar one, tetrahedral one, trigonal pyramidal

Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.