Elements, compounds and mixtures

The box contains the names of some substances.

chloride\begin{array}{|cccc|} \hline \text{carbon monoxide} & \text{ethanol} & \text{iron} & \text{neon} \\ \text{nitrogen} & \text{oxygen} & \text{sodium} & \text{sodium chloride} \\ \hline \end{array}

Choose a substance from the box that best matches each description. Each substance may be used once, more than once or not at all.

Which substance is a covalent compound that is a liquid at standard room temperature and pressure?

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Which substance is an elemental gas that relights a glowing splint?

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Which substance is a monatomic element that is extremely unreactive?

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Which substance is a toxic compound produced by the incomplete combustion of hydrocarbons?

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Which substance is a metal that is extracted from its oxide ore by reduction with carbon in a blast furnace?

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Elements, compounds and mixtures Questions