Does beryllium (Be) or Sodium (Na) have the same electron arrangement as Magnesium (Mg)? Why?
1 answer:
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Answer:
0.08 moles
Explanation:
Relative atomic mass of KMnO4 = K + Mn + O4 = 39 + 55 + 16 x 4 = 158
=> Moles in 13g of KMnO4 = =
= 0.082278.. = 0.08 moles
Answer:
.
Explanation:
.
Among the four species in this reaction, is species with the largest number of atoms per molecule. Assume that the coefficient of this compound is
.
.
Number of atoms on the left-hand side of the reaction:
:
.
:
.
: not found yet.
By the conservation of atoms, the number of atoms on the right-hand side of the reaction should match those on the left-hand side. In this reaction, is the only product with carbon atoms, whereas
is the only product with hydrogen atoms. These
carbon atoms and
hydrogen atoms would correspond to:
molecules, and
molecules.
.
Number of atoms on the right-hand side of the reaction:
.
.
.
The number of atoms on the left-hand side should match those on the right-hand side. In this reaction,
is the only reactant with
atoms. These
atoms would correspond to:
molecules.
.