The freezing and thawing action of water affects a rock by?
a. transforming the rock into ig...
Chemistry, 28.09.2019 09:30 yungkxng57
The freezing and thawing action of water affects a rock by?
a. transforming the rock into igneous rock
b. chemically changing the rock
c. gradually breaking down the rock into smaller pieces
d. leaving behind sendimentary particles from evaporated solutions
Answers: 2
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 09:30, kevinh2683
Apump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump
Answers: 2
Mathematics, 26.02.2021 22:40
Mathematics, 26.02.2021 22:40
Mathematics, 26.02.2021 22:40