Which contains 3 significant figures.

A. 5.0x10^2

B. 500

C. 0.001

D. 1.00x10^-3

E. 0.00100

F. 395

Calculate the pressure exerted by Ar for a molar volume of 0.590 L⋅mol-1 at 295 K using the van der Waals equation of state. The van der Waals parameters a and b for Ar are 1.355 bar⋅dm^6⋅mol^ (-2) and 0.0320 dm^3⋅mol^ (-1), respectively.

The central core of an atom is called the

What cells are chicken eggs made from

Refer to aqueous solutions containing 1:1 mole ratios of the following pairs of substances. Assume all concentrations are 1 M.

Qual a massa, em gramas, de duas moléculas de CH4? C = 12g H = 1g Resposta: 5,31x10^-23 Como chegar no resultado?

Will an object with a density of 0.97 g/ml float or sink in water

Which subatomic particle contributes least to the mass of the atom? which subatomic particle contributes least to the mass of the atom? neutron electron proton all of these contribute equally?

2H2S (g) 2H2 (g) + S2 (g) Kc = 1.67 * 10 ^-7 at 800 C A 0.500 L reaction vessel initially contains 0.0125 mol of H2S at 800 C. Find the equilibrium concentrations of H2 and S2.

An atom has an atomic number of 9 a mass number of 19 and an electron configuration of 2-6-1 explain why the number of electrons in the second and third shells shows that this is in an excited state

How can a chemical reaction be sped up? Pack in more of the reactant to increase the_.