How many molecules of h20 contain 2.0 x 10^22 molecules of water?

An occuled front moves over farmland that has been experiencing drought conditions. What change in weather likely bring? A. more dry air and snunny skys B. violent, short-lived thunderstorms C. an extented period of rain D. gray skies, but no rain

A chemist attempts to separate barium ions from lead ions by using the sulfate ion as a precipitating agent. the ksp values of baso4 and pbso4 are 1.1 * 10-10 and 1.6 * 10-8, respectively.

How many moles of carbon are in 5.2 moles of C7H18?

The flame in an operational Bunsen burner undergoes a A) phase change. B) nuclear change. C) chemical change. D) physical change.

E. solid copper sulfide and silver nitrate react to form copper (ii) nitrate and solid silver sulfide. write a balanced chemical equation that describes the reaction. identify the oxidation number of each element in the reaction.

Consider mixing 25.00 mL of 0.0200 M of each of the following of solutions. In which of the following will a precipitate form: Na2SO4 mixed with Ba (NO3) 2 NH4Cl mixed with Mg (NO3) 2 KF mixed with Ba (NO3) 2 MgCl2 mixed with Na2CO3

How many liters of chlorine gas at 650 mmhg and 25c can be produced by the reaction of 2.00 l of 2.50 m hcl solution with excess mno2?

What is the theoretical yield of H2S

How many atoms are there H, SO

How does the shape of the Earth affect the climate of different regions?