An atom contains three valence electrons, this atom could be?
1. sodium
2. magnesium
3....
Chemistry, 13.01.2021 01:30 lacourboud20005
An atom contains three valence electrons, this atom could be?
1. sodium
2. magnesium
3. aluminum
4. silicon
Answers: 2
Chemistry, 21.06.2019 22:30
The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.
Answers: 2
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What is the molar mass of a gas that has density of 2.054 g/l
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Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o
Answers: 1
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According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?
Answers: 1
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