Answer:
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22.0 has three significant figures.
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Which of the following processes moves rock materials across the surface of the earth?
C. Erosion
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The mole ratio Aluminium to Aluminum Oxide is 2 : 1
<h3>Further explanation</h3>
Given
Reaction
2Al + Fe ----> Al2O3 +2Fe
Required
The mol ratio
Solution
If we look at the reaction above, there is an element missing from the reactant i.e oxygen, because the number of atoms and elements involved in the reaction should be the same between the reactants and products.
So the possible and balanced reactions are:
<em>2Al(s) + Fe₂O₃ (s) → Al₂O₃ (s)+ 2Fe (s) </em>
From this reaction the ratio of Al: Al₂O₃ can be determined, which is 2: 1
The answer would be F as oxygen is delta negative and hydrogen is slightly delta positive. Forming a permanent dipole.
