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The strong forces that connect two or more molecules are known as 

Which particles have approximately the same mass?

The simplest whole number ratio of the number of atoms (or ions) in the compound is the molecular formula.

Match the name with the appropriate symbol

The smallest particle of an element that has the properties of that element and can enter into a chemical combination.

What is the concentration of CN- at equilibrium of a 0.15 M solution of HCN?  HCN (aq) ⇄ H+ (aq) + CN-(aq); Kc = 4.9 x10-10

Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows:[PBr5]eq = 0.56 M, [PBr3]eq = 0.23 M, [Br2]eq = 7.7 M.PBr5(g) ⇌ PBr3(g) + Br2(g)

For which reaction does Kp = Kc?

Under certain conditions, the equilibrium constant Kc for the decomposition of PCl5(g) into PCl3(g) and Cl2(g) is 0.0211. What are the equilibrium concentrations of PCl5, PCl3 and Cl2 in a mixture that initially contained only PCl5 at a concentration of 1.00 M? PCl5 (g) ⇄ PCl3 (g)+Cl2 (g)

Which drug is used to reduce hyperactivity?