Chemistry, 14.01.2020 11:31 emobaby335
Hen an electric current passes through liquid water, hydrogen gas passes accumulates at one electrode and oxygen accumulates at the other. which of the following is true?
a) a physical change has occurred, with energy is being absorbed.
b) a chemical change has occurred, with energy being given off.
c) a physical change has occurred, with energy being given off.
d) a chemical change has occurred, with energy being absorbed.
Answers: 2
Another question on Chemistry
Chemistry, 22.06.2019 12:00
What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?
Answers: 1
Chemistry, 22.06.2019 19:00
What information does a complete ionic equation give that the balanced equation doesn’t show?
Answers: 1
Chemistry, 22.06.2019 20:00
If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?
Answers: 1
Chemistry, 23.06.2019 01:00
Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas
Answers: 2
You know the right answer?
Hen an electric current passes through liquid water, hydrogen gas passes accumulates at one electrod...
Questions
Mathematics, 23.07.2019 22:30
Mathematics, 23.07.2019 22:30
Mathematics, 23.07.2019 22:30
History, 23.07.2019 22:30
History, 23.07.2019 22:30
Mathematics, 23.07.2019 22:30
Health, 23.07.2019 22:30
Health, 23.07.2019 22:30
Mathematics, 23.07.2019 22:30
Mathematics, 23.07.2019 22:30
