Chemistry, 16.11.2020 22:20 Darkwynd11791
(Groups 1-6)
1
5
6
1 H
2
1.000
3
2 L Ве
6.941 9.012
11 12
3 Na Ma
2431
19
4 K Ca
39.10 100
37 38
5 Rb Sr
85.47 87.52
55 56
6
Cs Ba
1329 1373
87 88
7 Fr Ra
2230
23
v
50 94
24
Cr
52.00
3 4
21
Sc TI
44.95
4738
39
40
Y Zr
8991 91.22
57 72
HE
138 178
89 104
Ac RI
2270
251.1
NO
9291
Ta
180.9
105
Db
2621
Mo
95.94
74
w
183.8
105
Sg
253.1
Which set of elements below is the most similar in chemical behavior?
OH, Be, SC
O Fr, Ra, Rf
Ti, V. Cr
Be, Ca, Ra
Answers: 2
Chemistry, 21.06.2019 19:10
Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?
Answers: 1
Chemistry, 21.06.2019 23:30
Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.
Answers: 1
Chemistry, 22.06.2019 09:00
The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.
Answers: 2
(Groups 1-6)
1
5
6
1 H
2
1.000
3
2 L Ве
6.941 9.012...
5
6
1 H
2
1.000
3
2 L Ве
6.941 9.012...
Computers and Technology, 20.11.2020 14:00
Mathematics, 20.11.2020 14:00
Mathematics, 20.11.2020 14:00
Chemistry, 20.11.2020 14:00
Computers and Technology, 20.11.2020 14:00
Biology, 20.11.2020 14:00
World Languages, 20.11.2020 14:00
Geography, 20.11.2020 14:00
Chemistry, 20.11.2020 14:00