When heat energy is added, two changes are observed:
Change A: Solid changes to a liquid
...
Chemistry, 28.05.2020 15:00 ashiteru123
When heat energy is added, two changes are observed:
Change A: Solid changes to a liquid
Change B: Solid changes directly to a gas.
What are the names for phase changes A and B?
A is freezing and B is condensation.
A is freezing and B is sublimation.
A is melting and B is condensation.
Ais melting and B is sublimation.
Answers: 3
Chemistry, 22.06.2019 07:30
11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
Answers: 3
Chemistry, 22.06.2019 07:30
According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons
Answers: 1
Chemistry, 22.06.2019 14:30
The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
Answers: 2
Chemistry, 22.06.2019 17:00
The biosphere of the earth is made up of what compound? organic or inorganic?
Answers: 3
Geography, 12.10.2019 22:50
History, 12.10.2019 22:50
Chemistry, 12.10.2019 22:50
Mathematics, 12.10.2019 22:50
History, 12.10.2019 22:50
Chemistry, 12.10.2019 22:50
Biology, 12.10.2019 22:50
Mathematics, 12.10.2019 22:50
Mathematics, 12.10.2019 22:50
History, 12.10.2019 22:50
Health, 12.10.2019 22:50
Health, 12.10.2019 22:50
Chemistry, 12.10.2019 22:50
History, 12.10.2019 22:50