21. A chemistry teacher needed 200 mL of 1.5 M Na S2O3, (molar mass 158 g/mole). How many grams should the teacher measure out?

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

elements make up everything, and they combine to make compounds.

the answer is c