A compounds empirical formula is CH2. If the formula mass is 28 g/mol, what is the molecular formula

Are these compounds - methane and CH4 ionic or covalent?

Is the same reactant always the limiting reactant?

What should Molly do to treat her burn?

Three elements have the electron configurations 1s2 2s2 2p6 3s2 3p6, 1s2 2s2 2p6 3s2, and 1s2 2s2 2p6 3s2 3p6 4s1. The first ionization energies of the three elements (not in the same order) are 0.4189, 0.7377, and 1.505 MJ/mol.

How many grams of o2 are in a 5.0 mol of the element?

What is 3 ethyl 3, 4 dimethylheptane abbreviated structural formula?

What kind of energy can be transferred

What could a scientist do to determine what era the Eocene period belongs to on the geologic timescale?

What is the name of the flower part that elevates the stigma

In atoms, electrons surround the nucleus in