FREE POINTS What coefficient is needed to balance this equation? Fe + 4H2O --> Fe6O4 + 4 H2

a) 2
b) 10
c) 6
d) 8

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? a) the need for a coenzymeb) allosteric inhibitionc) competitive inhibitiond) insufficient cofactors

What is the chemical formula for dihydrogen monoxide