2. does a chemical reaction occur when soap is formed? how do you
know?...
Chemistry, 19.12.2019 04:31 tyrianadonelson
2. does a chemical reaction occur when soap is formed? how do you
know?
Answers: 3
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
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What are the similarities of physical and chemical change ?
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Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.
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Which three statements represent the benefits of performing experiments using computer simulations?
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