What percentage of the sun is composed of hydrogen?

What is the name of the product of the hydrogenation of 3,6,6-trimethyl-4-nonene?

N2 (g) + 3h2 (g) ⇌ 2nh3 (g) the equilibrium constant kc at 375°c is 1.2. starting with [h2]0 = 0.76 m, [n2]0 = 0.60 m and [nh3]0 = 0.48 m, which concentration (s), if any, will have increased when the mixture comes to equilibrium?

In which of these reactions is energy released? A. endothermic reactions B. no reactions C. exothermic reactions D. all reactions

The volume of a gas is 7.15 l measured at 1.00 atm. what is the pressure of the gas in mmhg if the volume is changed to 9.25 l?

What is the molality of chloride ions in an aqueous solution of magnesium chloride for which xmgcl2 is 0.01?

All of the following are examples of electrolytic solutions, except __. A) Ocean water B) Pure water C) Strong hydrochloric acid D) potassium chloride solution

How many stereoisomers are possible for 1 2-dichlorocyclopentane?

Consider the balanced equation K, Croa (aq) + Pb (NO3) 2 (aq) → PbCrO4 (s) + 2KNO3 (aq) If 25.0 ml of a 1.00M K, Cro, solution is mixed with 10.0 ml of a 0.500M Pb (NO3) 2 solution. a. How many moles of potassium chromate are present? b.

Name 3 organisms that would be classified as eukaryotic, multicellular, and heterotrophic.

A bond formed by electrical attraction between two oppositely charged ions is called