What determines the average kinetic energy of the particles in a gas?

A.

the number of collisions

B.

the number of particles

OC.

the size of the particles

D.

the temperature

Sometimes engineers increase output through crossbreeding. This is when they

Solid arsenic reacts with oxygen gas to synthesize solid arsenic trioxide. How many moles of arsenic trioxide will be produced from 3.4 moles of oxygen gas?

What is occurring in the following reaction? H2 + Cl2 → 2HCl A: Cl2 is being oxidized. B: H2 is gaining two electrons. C: Cl2 is acting as an oxidizing agent. D: H2 is being reduced.

Calculate the ph of a 0.060 m carbonic acid solution, h2co3 (aq), that has the stepwise dissociation constants ka1 = 4.3 * 10-7 and ka2 = 5.6 * 10-11.

Which element has the greatest density at STP? (1) scandium (3) silicon (2) selenium (4) sodium

C12 has 6 protons. how many neutrons does c13 have? a. 6 b. 7 c. 13 d. 19

Imagine you are at a local water park on a hot summer day and your feet begin to get hot from the cement. Looking ahead, you notice that there are two paths you can take to your favorite waterslide.

Determine the pH of a 0.350 M solution of HA. The pkb of A - is 12.830.

Which statement is true about oxygen-17 and oxygen-18?

A man is making chicken noodle soup and has found it to be too salty. What method could he use to make the soup less salty? a. Add equal measured amounts of water to the soup. b. Bring the soup to a boil so that some of the broth evaporates. c.