Chemistry, 02.01.2022 02:50 gigi246899
Select the corresponding answer for each letter below to fill in the table. * 7 points
Symbol
40
°19K+1
Atomic #
A
4
Mass #
B
H
# Protons (+)
C
|
# Electrons (-)
D
2
# Neutrons
E
6
F
J
Cation or
Anion?
Answers: 2
Chemistry, 23.06.2019 03:30
Select the correct lewis structure for fluorine which is group 7a element?
Answers: 1
Chemistry, 23.06.2019 08:40
The activation energy for this reaction is 75 kj·mol–1. the enzyme catalase (found in blood) lowers the activation energy to 8.0 kj·mol–1. at what temperature would the non-catalyzed reaction need to be run to have a rate equal to that of the enzyme-catalyzed reaction at 25°c?
Answers: 2
Chemistry, 23.06.2019 10:00
An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.
Answers: 3
Select the corresponding answer for each letter below to fill in the table. * 7 points
Symbol
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