Understand, !

in a reaction, 15 moles of carbon dioxide are produced from 5 moles of iron (iii) oxide and 15 moles of carbon monoxide. what is the mole ratio of carbon dioxide to carbon monoxide?

15: 5

5: 15

1: 3

1: 1

Non renewable resources like petroleum eventually

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.

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory