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
Chemistry, 22.06.2019 08:00
This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.
Answers: 1
Chemistry, 22.06.2019 10:30
Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic
Answers: 1
5)
A student is conducting a lab that requires 2 M HCl. In the chemical closet, there is 150...
A student is conducting a lab that requires 2 M HCl. In the chemical closet, there is 150...
Mathematics, 02.12.2020 22:20
Arts, 02.12.2020 22:20
Physics, 02.12.2020 22:20
Biology, 02.12.2020 22:20
Mathematics, 02.12.2020 22:20
Mathematics, 02.12.2020 22:20
Mathematics, 02.12.2020 22:20
Chemistry, 02.12.2020 22:20
Mathematics, 02.12.2020 22:20
Mathematics, 02.12.2020 22:20
SAT, 02.12.2020 22:20
English, 02.12.2020 22:20