Answer:
Two
Explanation:
Nitrate has a charge of negative 1 and the Iron (II) tells us the iron in that formula has a charge of +2, so in order for the iron to have to equal positive two, there has to be two negative. Since on nitrate ion is -1, you need two to make -2.
The mole of anything has the same amount of particles and it is equal

.
So a mole of magnesium and a mole of iron have the same number of atoms and it is equal
6.02*10²³


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The given compound has 3 carbon atoms, so in 1 mole of that compound, there will be 3 moles of carbon atoms.
Mass of each mole of carbon atoms = 12 g
For 3 mole carbon atoms, it will be 12 × 3 = 36 grams
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
The Bohr Model, which was proposed by Niels Bohr in 1913
Your answer will be B because sodium and chlorine and both elements and two elements combine to make a compound