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Chemistry Practice Questions and Answers (Q&A)

J. Alfie, Content Writer
Answered: Dec 14, 2020
A strontium atom has 2 valence electrons, which are located on the outermost shell of the strontium. Valence electrons are electrons that are present in the outermost shell. The chemical symbol...Read More

4 Answers

3159 views
F.Brian
Answered: Jan 28, 2018
A few properties distinguish something to be a heterogeneous mixture. Included in this are mixtures that do not evenly mix, have more than one phase, particles are not uniformly distributed, and...Read More

3 Answers

1788 views
C. Bernthal, Teacher
Answered: Jan 17, 2019
The answer to this is A. A polar covalent bond is present in the water. This is a type of bond wherein the different electrons are closer to the oxygen nucleus as compared to the hydrogen...Read More

4 Answers

1470 views
John Adney
Answered: Jan 19, 2017
34 minus 18 is 16 not 14

2 Answers

563 views
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