Chemistry, 26.09.2021 01:40 astultz309459
Which of the following occurs when solid particles gain kinetic energy? Select all that apply.
1) Melting
2) Freezing
3) Condensation
4) Evaporation
5) Or other:
please solve this problem as fast as possible!
Answers: 1
Chemistry, 21.06.2019 20:30
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 00:30
Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?
Answers: 2
Chemistry, 22.06.2019 13:30
What produces wave a)sound b) heats c)transfer of energy d)vibrations
Answers: 2
Chemistry, 23.06.2019 04:10
Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction
Answers: 1
Which of the following occurs when solid particles gain kinetic energy? Select all that apply.
1)...
Mathematics, 06.10.2019 15:00
Mathematics, 06.10.2019 15:00
Mathematics, 06.10.2019 15:00
Mathematics, 06.10.2019 15:00
History, 06.10.2019 15:00
Biology, 06.10.2019 15:00
Mathematics, 06.10.2019 15:00
Social Studies, 06.10.2019 15:00