Chemistry, 23.03.2020 20:25 emilianacassandra
If anyone could please help me i'd greatly appreciate it! I have tried over and over again and can not figure this out.
What is the percent ionization of H₂NNH₂ in a solution with a concentration of a 0.490 M? (Kb = 1.3 × 10⁻⁶)
Answers: 2
Chemistry, 21.06.2019 23:00
Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.
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 14:30
Is a pencil falling to the floor anon contact force, a force, or a contact force
Answers: 1
If anyone could please help me i'd greatly appreciate it! I have tried over and over again and can n...
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