Scientists are often interested in knowing the
molar heat of combustion - the heat released
during the combustion of one mole of a
substance. Use the Periodic Table to find molar
masses
How many moles of ethanol are present in the
sample?

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? ?