In the chemical symbol for nitrogen gas, N2, what does the "2" represent?

How are a person and a wax model of that person alike? How are they different?

How does the precision of the absolute-age dating compare to the precision of relative-age dating?

Which substance is classified as an arrhenius base

a certain compound has a molecular mass of 60g and has the following percentage by composition carbon 40 %, hydrogen 6.67% and oxygen 53.3%. Determine it's molecular formula

I 1 mL o a 0.02% w/v isoproterenol hydrochloride solution is diluted to 10 mL with sodium chloride injection be ore intravenous administration, calculate the percent concentration o the diluted solution

according to the law of conservation of, the number of atoms in the products of a chemical and equation must be balanced with the number of atoms in the reactants

whats the specific heat of an unknown substance if the addition of 800 joules of heat energy caused a 30 gram sample to warm from 20 to 40 degrees celsius?

How much energy (in kj) is required to ionize 2.52 moles of hydrogen atoms?

Copper has a density of 8.96 g/cm3. If 75.0 g of copper is added to 50.0 mL of water in a graduated cylinder, to what volume reading will the water level in the cylinder rise?

How do burmese pythons affect florida ecosystem?