The density for potassium is 0.856 g/cm3. What would be the mass of a 30 cm3 piece of potassium? A. 51.36g B. 25.68g C. 25.5g D. 35.05g

V. = 22.4 L; P = 1 atm; P, = ? atm; V, = 2.8 L

Deep Space 2 was a spacecraft powered by an engine that gave off xenon partides to change velocity. It had a mass of 500 kg. Which expression can be used to find the spacecraft's acceleration if its engine created a net force of 0.10 N? 0.

Which atom has a radius larger than the radius of its ion?

Explain whether smoke filling up a room is diffusion or not

What is the concentration of ammonium ions in a 0.100 M solution of (NH3) 2SO4?

Which elements did curies discover

What hypothesis can you draw about penicillin

A burning mtch and a bonfire may have the same temperature, yet you would not sit around a burning match on a fall evening to stay warm, why not?

The average depth of the ocean is 3730m. The marianas trench is 11033m deep. How many times deeper is the marinas trench in the average depth of the ocean

Why are carbon sinks important? Animals would not get the carbon they needed without carbon sinks. Carbon sinks increase atmospheric carbon levels and keeps the planet habitable. Plants would not get the carbon they needed without carbon sinks.