Make models of a plant and an animal cell. Include labels for each part of the cells. Use your models to describe how the plasma membrane contributes to how the cell functions as a whole. (its an experiment on placing eggs in tap water, salt water, sugar water, and syrup and measuring their before and after )

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

Light waves travel than sound waves.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.