How many neutrons does element x have if its atomic number is 22 and its mass number is 99?

What is the molar mass of potassium nitrate, kno3

What are the similarities between compounds and mixtures?

Temperature is defined as a. the equivalent of heat. b. a measure of the average kinetic energy of the individual atoms or molecules composing a substance. c. how hot or cold it is. d. the total kinetic energy of the atoms or molecules composing a substance. e. none of the above is correct.