H2O (water) has 2 hydrogen atoms and 1 oxygen atom.
Sugar. (We need a design tech section)
Explanation:
Percentage Yield
= (3.37g/3.81g) * 100% = 88.45%.
Therefore 88.45% SO2 is the percentage yield.
The answer is 3.5 × 10^-3
<h2><u>Answer</u> :</h2>
The most appropriate option is :

Since, they are the most abundant elements found in Earth's Crust.
