Complete the chemical equation for the reaction. $\text{2Cu(NO}_3)_2 \rightarrow \text{O}_2 + \ldots\ldots\text{NO}_2 + \ldots\ldots\ldots\ldots$
Only oxygen gas is collected at X. Explain why this is so.
Explain how nitrogen dioxide is formed in car engines.
Calculate the number of moles of copper(II) nitrate present in the 18.8 g.
Calculate the maximum number of moles of oxygen that can be made by heating 18.8 g of copper(II) nitrate.
Calculate the maximum volume of oxygen at room temperature and pressure, in cm$^3$, that can be made by heating 18.8 g of copper(II) nitrate.
Give the formula of the pale blue precipitate formed in test 1.
Explain the changes observed in test 2.
Identify the two reagents that need to be added to the aqueous copper(II) nitrate in test 3.
Write a chemical equation for the reaction of copper(II) carbonate with nitric acid.
Carbon dioxide is added to the air by living things. Name the chemical process by which living things release carbon dioxide into the air.
Carbon dioxide is removed from the air by plants. Name the chemical process by which plants take carbon dioxide out of the air.