The setup below was used to prepare and collect nitrogen gas in the laboratory. Study it and use it to answer the questions that follow. a) What property of nitrogen allows it to be collected as shown

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2. The setup below was used to prepare and collect nitrogen gas in the laboratory. Study it and use it to answer the questions that follow.

a) What property of nitrogen allows it to be collected as shown?
Nitrogen gas is collected over water. This method is used for gases that are insoluble or sparingly soluble in water.
Answer: Nitrogen is insoluble in water.

b) State and explain the observation made in the combustion tube during the experiment.
The combustion tube contains heated copper (II) oxide, which is black. Gas V (ammonia) reduces copper (II) oxide to copper metal.
Observation: The black solid turns reddish-brown.
Explanation: *Copper