Chemistry, 19.10.2020 01:01 joseroblesrivera123
Which of the four following items are made up of one or more molecules?
Group of answer choices
Salt
Neon
Hydrogen
Gold
Answers: 1
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How do scientists think that gravity affected the formation of our solar system?
Answers: 1
Chemistry, 22.06.2019 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
Chemistry, 22.06.2019 21:00
Which of the following is a physical property flammability heat of combustion solubility and toxicity
Answers: 1
Which of the four following items are made up of one or more molecules?
Group of answer choices
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