What is an atomic weight?

Calculate the solubility of o2 in water at a partial pressure of o2 of 120 torr at 25 ̊c. the henry's law constant for o2 at 25 ̊c is 1.3 x 10-3 mol/l atm. how do you expect the solubility to change if the temperature were decreased?

Is melting ice an endothermic or exothermic? its a big class discussion in chemistry and the teacher won't tell us until the whole class agrees

Definiton of atomic mass unit and the name of the atom mass it is on.

What is oxidized and what is reduced in this reaction? N 2 H 4 (l) + 2H 2 O 2 (l) N 2 (g) + 4H 2 O (g) Nis reduced and H is oxidized. Nis reduced and O is oxidized is oxidized and O is reduced oxidized and His reduced.

What is the concentration of hydroxide ions in pure water at 30.0c, of kw at this temperature is 1.47 x 10-14?

Whereas asteroids are compromised primarily of (Blank), comets are compromised primarily of. A. Rocky material; icy material B. permafrost; molten rock C. icy material; rocky material D. Dark cloud; planetary fragmetns

The term for the "family" of organic compounds that is soluble in organic solvents but not in water is:

4. Which hypothesis led to the discovery of the proton? A. Cathode rays should be attracted to a positively-charged plate. B. The nucleus of an atom should contain neutrons. C.

How many moles in 2.0g of carbon dioxide?

The formula for potassium chlorate is kclo3. the formula for magnesium chloride is mgcl2. what is the formula for magnesium chlorate? mg2clo3 mgclo3 mg2 (clo3) 3 mg (clo3) 2 none of the above