Which of the following methods separates a homogeneous solution by spinning the solution very fast?

Evaporation and distillation

Filtration

Centrifuge

Magnetism

Which factors affect heat transfer brtween a warm and a cool substance

Why do cells have a plasma membrane? A. to separate protein from the nucleus B. to distinguish plants from animals C. to define the size of the cell D. to separate the inside of the cell from its enviroment

What role does wind play in mechanical weathering?

Which temperate change indicate an increase in the average kinetic energy of the molecules in a sample?

How many moles are in 4.3 x 10^22

why are plasmas of great interest to scientists or manufacturers. descride 2 current uses of plasmas and describe 1 way scientists and engineers hope to use plasmas in the future

All of the following are properties of bases except A. Bitter taste B. Produces hydroxide ions in water C. Produces hydronium ions in water D. Slippery to the touch

Sound travels through a medium. Does sound travel in space? Explain why or why not:

Which issue poses the greatest long-term challenge in the development of new nuclear power plants? [A] controlling carbon dioxide emissions [B] storage of radioactive waste [C] controlling fission reactions [D] mining of uranium

In which species does nitrogen have the highest oxidation number? Select one: a. NH3 b. N2 c. NaNO3 d. NO2- e. HNO2