What is the main reason a substance changes from one state of matter to another?
a. the...
Chemistry, 27.01.2020 12:31 anthony1366
What is the main reason a substance changes from one state of matter to another?
a. the substance's color changes.
b. the substance's temperature changes.
c. the substance's size changes.
d. the substance's shape changes.
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 14:30
1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?
Answers: 3
Chemistry, 22.06.2019 14:50
Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape
Answers: 1
Chemistry, 22.06.2019 15:00
How is the shape of the poem “peer” connected to its meaning?
Answers: 2
Biology, 21.07.2019 16:30
Mathematics, 21.07.2019 16:30
Mathematics, 21.07.2019 16:30
History, 21.07.2019 16:30
English, 21.07.2019 16:30
History, 21.07.2019 16:30
Biology, 21.07.2019 16:30