Which gas has. an atomic mass of 15.999

What state of matter has a fixed amount of volume but can change shapes according to its container?

Nitrogen has an average atomic mass of 14.00674. it has two isotopes, n-14 and n-15, with atomic masses of 14.0031 amu and 15.001 amu, respectively. what is the abundance of n-15?

What happens when acid and base are mixed together

IF 500 mL of air contains 2.50x10^22 particles (atoms and molecules). how much particles do you inhale in one day if you breath 15000L of air?

Write a balanced redox equation for the reaction that occurs cr dissolves in 1 m h2cr2o7.

Using John daltons method, what's the ratio of the chemical compound of Salt - NaC1

A solution of cough syrup contains 5.00% active ingredient by volume. if the total volume of the bottle is 41.0 ml, how many milliliters of active ingredient are in the bottle?

What factor is most important in determining whether water is a solid liquid or gas

Go'=30.5 kJ/mol a) Calculate the equilibrium constant for this reaction at 25C. b) Because deltaGo' assumes standard pH of 7, the equilibrium constant calculated in (a) corresponds to Keq' =

Which mineral test was used if a geologist refers to a mineral as metallic? Streak Hardness Luster Magnetism