Chemistry, 02.07.2019 10:00 AutumnJoy12
Astudent moves from a region that has short, cool summers and very cold winters to a region that has hot and humid summers but short, cold winters. both regions are located within which climate? dry highlands temperate marine temperate continental
Answers: 1
Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
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
Astudent moves from a region that has short, cool summers and very cold winters to a region that has...
Biology, 09.11.2019 20:31
Mathematics, 09.11.2019 20:31
Mathematics, 09.11.2019 20:31
English, 09.11.2019 20:31
Computers and Technology, 09.11.2019 20:31
Mathematics, 09.11.2019 20:31
Mathematics, 09.11.2019 20:31
History, 09.11.2019 20:31
Mathematics, 09.11.2019 20:31
Mathematics, 09.11.2019 20:31
Biology, 09.11.2019 20:31
English, 09.11.2019 20:31