Chemistry, 17.06.2021 09:40 rousedem28381
61. Using the symbol of the previous noble gas to indicate the core
electrons, write the electron configuration for each of the fol-
lowing elements.
a. scandium, Z= 21 c. lanthanum, Z= 57
b. yttrium, Z = 39
d. actinium, Z= 89
Answers: 3
Chemistry, 22.06.2019 03:30
Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
Answers: 1
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 Ī“g, Ī“h, and Ī“s for the adsorption of water.
Answers: 2
Chemistry, 22.06.2019 19:00
Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury
Answers: 2
61. Using the symbol of the previous noble gas to indicate the core
electrons, write the electron c...
Biology, 20.06.2021 07:00
Biology, 20.06.2021 07:10
Chemistry, 20.06.2021 07:10
Physics, 20.06.2021 07:10
Health, 20.06.2021 07:10
Chemistry, 20.06.2021 07:10
English, 20.06.2021 07:10
English, 20.06.2021 07:10
Mathematics, 20.06.2021 07:10
Health, 20.06.2021 07:10
Biology, 20.06.2021 07:10
Social Studies, 20.06.2021 07:10
Spanish, 20.06.2021 07:10