Chemistry, 10.08.2021 22:40 catelinboog04
A balance and a graduated cylinder are used to determine the density of a mineral sample,
The sample has a mass of 14,7 g and a volume of 22 cm? What is the density of the
mineral sample?
Answers: 3
Chemistry, 22.06.2019 05:00, foreignking02
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 08:00, stephstewart1209
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
Answers: 2
Chemistry, 22.06.2019 09:20, nyceastcoast
Give the orbital configuration of the phosphorus (p) atom.
Answers: 1
Chemistry, 22.06.2019 13:00, nadiarose6345
In a copper wire, a temperature increase is the result of which of the following
Answers: 1
A balance and a graduated cylinder are used to determine the density of a mineral sample,
The sampl...
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