Which of the following is a valid mole ratio from the balanced equation 2Fe:0, +36-4Fe + 3C02? (4 points) O a
2 mol Feo
4 molts
Ob
4 mol C
3 mol Fe
ос
2 mol Fe, o.
4 mol C
Od
3 mol c
4 mol CO2

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?