Which of the answer choices best represents the approximate relative mass of the three subatomic particles?

(Select all that apply.)

protons = neutrons

electrons = neutrons

neutrons > electrons

protons > electrons

The elements in groups 3-12 are known as: A. The transition elements. B. The halogens. C. The noble gases. D. The alkali earth metals.

List four greenhouse gases in the atmosphere. For each gas, describe its prevalence in the atmosphere, its natural sources, its human-induced sources, and how its concentration in the atmosphere might be changing.

C3H6 (OH) 2 major species present when dissolved in water

What is the number of moles in 9.63 l of h2s gas at stp?

How can ionic compounds dissolve in water?

Which statement correspond to a cellular respiration

A tire is filled to a gauge pressure of 2 atm at 27 degrees Celsius after a drive the temperature within the tire rises to 47 degrees celsius. What is the pressure within the tire now

What mass, in grams, of fluorine has (F2) is contained in a 10.3-liter tank at 29.8 degrees Celsius and 1.23 atmospheres? Show all of the work used to solve this problem.

What is the empirical formula of a substance that contains 2.64g of C, 0.444g H and 3.52g of O

Which of the following is a step in the conversion of 2.5 hm3 to L? fraction cubed: one cm over ten to the second power m fraction cubed: one hm over ten to the negative 2 power m ten to the negative third power L over 1 mL fraction cubed: one ml