Questions: Select the element(s). HCl Cl2 HF N2 Check

Transcript text: Select the element(s). HCl $\mathrm{Cl}_{2}$ HF $\mathrm{N}_{2}$ Check

Solution

Solution Steps

Step 1: Identify the Elements

First, we need to identify which of the given substances are elements. An element is a substance that cannot be broken down into simpler substances by chemical means and consists of only one type of atom.

Step 2: Analyze Each Substance

HCl: This is hydrogen chloride, a compound consisting of hydrogen and chlorine atoms.
$\mathrm{Cl}_{2}$: This is chlorine gas, consisting of two chlorine atoms. Since it consists of only one type of atom, it is an element.
HF: This is hydrogen fluoride, a compound consisting of hydrogen and fluorine atoms.
$\mathrm{N}_{2}$: This is nitrogen gas, consisting of two nitrogen atoms. Since it consists of only one type of atom, it is an element.

Final Answer

$\boxed{\mathrm{Cl}_{2} \text{ and } \mathrm{N}_{2}}$

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