How much energy is evolved from the combustion of 100 g C2H2, according to the
reaction below?
2 C2H2 +502 +4 CO2 + 2 H2O;
-1299 kJ/mol
AHron
=
-

As you move from right to left on the periodic table the atomic radius fill in the blank

Classify this reaction: 2al+n2-> aln.

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?