Two objects of the same mass are on two different planets. Planet A has a force of gravity that is weaker than that of planet B. How will the weights of the objects compare to each other? (4 points) The weights of the objects will be the same. The weight of the object on planet A will be greater than the weight of the object on planet B. The weight of the object on planet A will be less than the weight of the object on planet B. This cannot be determined without knowing the actual mass of the objects.

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

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?