How many moles of H2 are needed to produce 18 miles NH3 in the reaction below ? N2+ 3H2 ——-> 2 NH3

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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? ?

bcde is the incorrect answer it is a