Chemistry, 10.12.2020 02:50 imlexi12393
A system gains 15.0 J of thermal energy and does 65.0 J of work on its surroundings. Calculate the change in internal energy (ΔE) of the system in J.
Answers: 3
Chemistry, 21.06.2019 20:30, nmadrigal
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
Answers: 2
Chemistry, 22.06.2019 12:30, MrSavannahCat
Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d
Answers: 1
Chemistry, 23.06.2019 04:00, onegirl435
The movement of tectonic plates and in two locations is described below: location a: tectonic played push together location b: tectonic plates push apart
Answers: 1
A system gains 15.0 J of thermal energy and does 65.0 J of work on its surroundings.
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