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
Answers: 3
Chemistry, 22.06.2019 06:30
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
Chemistry, 22.06.2019 07:30
All cells are made of four types of acids, lipids, proteins, and carbohydrates.
Answers: 1
Chemistry, 22.06.2019 08:40
Which statement can best be concluded from the ideal gas law?
Answers: 2
. A reaction in which A, B, and C react to form products is first order in A, second order in B, and...
Chemistry, 08.01.2021 21:30
Mathematics, 08.01.2021 21:30
Arts, 08.01.2021 21:30
Mathematics, 08.01.2021 21:30
Mathematics, 08.01.2021 21:30
Chemistry, 08.01.2021 21:30
Mathematics, 08.01.2021 21:30
Social Studies, 08.01.2021 21:30
Mathematics, 08.01.2021 21:30
Advanced Placement (AP), 08.01.2021 21:30