Which two structures would provide a positive identification of a plant cell under a microscope

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table