In this lab experiment, you will react copper(ii) chloride and aluminum. you will look for clues as to which substance was in excess and which limited the reaction. write an investigative question that describes the scientific goals of this experiment. make sure that your question applies to any reaction.
investigative question: “while observing a chemical reaction, how can you tell which reactant is limiting? ”

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

Geothermal energy for industrial use is available almost anywhere. a.true b.false