The "atomic weight" of an atom reflects the average number of

A) protons.

B) neutrons.

C) electrons.

D) protons + neutrons.

E) protons + neutrons + electrons.

2. This reaction has reached equilibrium at 40.0 oC, and the total pressure is measured to be 0.363 atm. What is the equilibrium partial pressure of? H3?

A diver is swimming underneath an oil slick with a thickness of 200 nm and an index of refraction of 1.50. A white light shines straight down towards the diver from above the oil slick. The index of refraction of water is 1.33.

What unit of measurement would most likely be used to measure the length of a racetrack

Which of the following is a characteristic of science? Testing many variables at once Each scientist gets unique results when doing the same experiment Using controlled conditions Starting with the answer that you want

Which following options are examples of matter? A) light B) Molecules C) Feelings D) people

A CFL bulb has an efficiency of 8.9% and a power of 22 W. How much light energy does the lightbulb produce in 1 second

Which of the following is true of high clouds?

A ferris wheel takes 5 minutes to complete one full rotation, what is the angular velocity of the ferris wheel

A heat engine has a thermal efficiency of 45%. how much power does the engine produce when heat is transferred into it at a rate of 109 kj/hr?

Dos pelotas de tenis se lanzan verticalmente, hacia arriba y desde el mismo punto, con 2 s de diferencia. La velocidad inicial de la primera es de 20 m/s, y la de la segunda, de 30 m/s.