Chemistry, 19.08.2019 05:20 19colemankl
What is true about the element francium (fr, atomic number 87)? more than one can be true a) it has seven valence electrons. b) it is likely to form ionic bonds. c) it is in period 7. d) it is nonmetal. e) it is a metal.
Answers: 1
Another question on Chemistry
Chemistry, 22.06.2019 11:00
As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
Answers: 3
Chemistry, 22.06.2019 11:00
Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
Answers: 1
Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
You know the right answer?
What is true about the element francium (fr, atomic number 87)? more than one can be true a) it has...
Questions
Chemistry, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
Mathematics, 26.02.2021 01:00
Spanish, 26.02.2021 01:00
Physics, 26.02.2021 01:00
Physics, 26.02.2021 01:00
Computers and Technology, 26.02.2021 01:00
Chemistry, 26.02.2021 01:00
Social Studies, 26.02.2021 01:00
History, 26.02.2021 01:00
Social Studies, 26.02.2021 01:00
