Chemistry, 15.07.2019 12:00 recon12759
How many valence electrons does a helium atom have? what is the formula of the ion formed when potassium achieves noble-gas electron configuration?
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Chemistry, 21.06.2019 22:30
Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b.slope c.benchmark d. index contour
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Chemistry, 22.06.2019 00:10
Which of the following best describes the formation of plasma?
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Chemistry, 22.06.2019 13:50
Read the chemical equation. 2c2h2 + 5o2 ā 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
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Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 ā 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
How many valence electrons does a helium atom have? what is the formula of the ion formed when pota...
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