If a scuba tank filled with oxygen gas at 284k at 800 mmHg is heated to 400 k, what is the new pressure in mmHg

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? ?

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.

catya your not at all which answer i've seen you do this on another question!