14. Iron is generally produced from iron ore through the following unbalanced reaction in a blast furnace:
Fe2O3(s) + CO(g) → Fe(s) + CO2(g)
a. If 4.00 kg of Fe2O3 are available to react, how many moles of CO are needed?
b. How many moles of each product are formed?

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.