Question

choose the correct example.

mg(c₂h₃o₂)₂, the number of h atoms is 3

mg(c₂h₃o₂)₂, the number of h atoms is 6

mg(c₂h₃o₂)₂, the number of h atoms is 2

mg(c₂h₃o₂)₂, the number of h atoms is 5

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Explanation:

Step1: Analyze the formula

In the formula \(Mg(C_{2}H_{3}O_{2})_{2}\), the sub - script outside the parentheses (\(2\)) affects all the elements inside the parentheses.

Step2: Calculate the number of H atoms

For hydrogen (\(H\)), inside the parentheses we have \(H_{3}\). When we multiply by the sub - script outside the parentheses (\(2\)), we use the formula \(n = 3\times2\).

$$n=3\times2 = 6$$

Answer:

\(Mg(C_{2}H_{3}O_{2})_{2}\), the number of \(H\) atoms is \(6\)