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?
mol

What is the molecular formula of a hydrocarbon with m+ = 166? (write the formula with no subscripts, e. g. c4h10.) what is the sum of rings and double bonds in this compound?

What must happen before a body cell can begin mitotic cell division

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)