Can someone please help me with these questions? They’re about greenhouse gases. (I’m not sure of my answer for 2 of these questions).

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

Convert .347 kilometers to miles show your work

What two categories of toxins were present in the air at dish,texas as a result of the gas pipelines that pass through the area