Notes

The aluminum heated the solution by 26◦C, causing vapour to rise into the air. As the vapour rose, the solution lightened, by a total of 1.87g. The solution’s colour also changed from a turquoise blue to an olive green. This is because the aluminum reacted to the chloride, causing it to dissolve. As the aluminum dissolved, it changed the copper from a liquid into a solid. As the reaction gave off hydrogen, a compound of water must be added to the equation, as the solution did not contain hydrogen. The water mixed with the copper chloride accounted for the hydrogen, explaining the gas’s reaction to flame. It took approximately one minute 39 seconds for the aluminum to completely dissolve into the solution. Although the aluminum was completely dissolved, hydrogen kept rising from the solution, in vapour, rather than from bubbles. This is because when the aluminum reacted to the chloride, it transferred electrons, causing it to combine with the chloride and the oxygen. This made the hydrogen turn into a gas, and the copper turn into a solid.

The aluminum heated the solution by 26◦C, causing vapour to rise into the air. As the vapour rose, the solution lightened by a total of 1.87g. The solution’s colour also changed from a turquoise blue to an olive green. This is because the aluminum reacted to the chloride, causing it to dissolve. As the aluminum dissolved, it changed the copper from a liquid into a solid. As the reaction gave off hydrogen gas, a compound of water must be added to the equation, as the solution did not contain hydrogen. The water mixed with the copper chloride accounted for the hydrogen, explaining the gas’s reaction to flame. It took approximately one minute and thirty-nine seconds for the aluminum to completely dissolve into the solution. Although the aluminum was completely dissolved, hydrogen kept rising from the solution, in vapour, rather than from bubbles. This is because when the aluminum reacted to the chloride, it transferred electrons, causing it to combine with the chloride and the oxygen. This made the hydrogen turn into a gas, and the copper turn into a solid.