Solve for x in the following expression: 3 / x = 7

A) 2.33

B) 21

C) 4

D) 0.4285

How many fluorine atoms bond with calcium to form calcium fluoride?

A solution contains all the solute it can normally hold at a given temperature is called

Que elementos de la tabla periodica están localizados en el mismo periodo

cylinder contains 250 g of Helium at 200 K. The external pressure is constant at 1 atm. The temperature of the surroundings is lowered by 97 K. Calculate the heat lost or gained by the system in response to this change in the external temperature.

Give an activity to show that gases are highly compressible as compared to solids.

When is Ksp determined for a system?

What is the average surface temperature of Uranus

Consider the following statements. A. Molecules of hot water have less kinetic energy than those of cold water. B. For most solids, solubility increases when temperature increases. C.

Which describes the fourth state of matter known as plasma? A It is a liquid containing nuclei and electrons. B It is a gas containing nuclei and electrons. C It is a liquid containing electrons created by fusion.

The process of using dna to produce complementary rna molecules is called