How many moles of Al will be consumed when 0.400 mol of Al2O3 are produced in the following equation?
4A1+302 -> 2A1203
A)
0.200 mol
B) 0.400 mol
C) 0.800 mol
D) 0.600 mol

C) 0.800 mol

Explanation:

In order to convert from moles of Al₂O₃ into moles of Al, we'll need to use the stoichiometric coefficients, using a conversion factor that has Al₂O₃ moles in the denominator and Al moles in the numerator:

So the correct answer is option C).

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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