Which of the following factors can be changed for a gas without changing the mass of the gas? Select all that apply.

volume

temperature

density

number of particles

pressure

Which term is defined as the ratio of the speed of light in a vacuum to the speed of light in the material it is passing through? A. Index of reflection B. Index of refraction C. Angle of reflection D. Angle of incidence

How high would the level be in an alcohol barometer at a pressure of 0.72atm? the density of alcohol is 0.79*103kg/m3, and 1atm=1.013*105n/m2?

What kind of friction does a fish experience as it swims through water?

Which structures represent 2-methylbutane (c5h12) ? check all that apply?

What type of fuel is burned in a nuclear power plant?

Aldo drove 420 miles using 18 gallons of gas. at this rate, how many gallons of gas would he need to drive 357 miles

How many grams of As2S3 are in 3.25 moles?

How does a solid turn into a liquid

What does the Ka represent in the equation and why is it important?

Is an american alligator a autotroph?