A molecule is a group of two or more atoms held together by chemical bonds, and it is electrically neutral.
This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Here's the breakdown for question 8:
A molecule is a group of two or more atoms held together by chemical bonds, and it is electrically neutral.
A radical (or polyatomic ion) is a group of atoms covalently bonded together that carries an overall electrical charge.
$\text{HSO}_4^-$: This is a group of atoms with an overall negative charge. It is a radical*.
$\text{Cl}_2$: This consists of two chlorine atoms bonded together and is electrically neutral. It is a molecule*.
$\text{OH}^-$: This is a group of atoms with an overall negative charge. It is a radical*.
$\text{H}_2$: This consists of two hydrogen atoms bonded together and is electrically neutral. It is a molecule*.
$\text{CO}_3^{2-}$: This is a group of atoms with an overall negative charge. It is a radical*.
Therefore:
Molecules: $\boxed{\text{Cl}_2, \text{H}_2}$
Radicals: $\boxed{\text{HSO}_4^-, \text{OH}^-, \text{CO}_3^{2-}}$
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