Chemistry, 09.11.2020 19:40 bobbycisar1205
Help me please!!
A tratar of Water (20°C) is placed in the freezer and turns into ice cubes (-8 °C)
- IN to the system
- OUT the system
- No energy is flowing
Answers: 2
Chemistry, 21.06.2019 18:00
Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly
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 05:30
What is the mass of each element in a 324.8 sample of co2
Answers: 1
Help me please!!
A tratar of Water (20°C) is placed in the freezer and turns into ice cubes (-8 °C)...
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