Chemistry, 06.10.2019 04:01 stephany739
What is the purpose of the arrow in a chemical equation? a. it indicates the direction in which the reaction occurs. b. it separates the elements from the compounds. c. it indicates the direction of increase in the number of molecules. d. it indicates the direction of heat movement in a reaction.
Answers: 2
Chemistry, 22.06.2019 17:20
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.
Answers: 2
Chemistry, 23.06.2019 00:00
How do you determine the percent yield of a chemical reaction
Answers: 1
Chemistry, 23.06.2019 04:20
The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3
Answers: 1
Chemistry, 23.06.2019 04:31
How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.
Answers: 1
What is the purpose of the arrow in a chemical equation? a. it indicates the direction in which the...
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