How did moseley establish a more accurate periodic table?
-by arranging the elements accordin...
How did moseley establish a more accurate periodic table?
-by arranging the elements according to atomic mass instead of atomic number
-by arranging the elements according to atomic number instead of atomic mass
-by arranging the elements into horizontal periods
-by arranging the elements into vertical groups
Answers: 2
Chemistry, 23.06.2019 00:00
Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
Answers: 3
Chemistry, 23.06.2019 01:50
Drag the tiles to the correct locations. each tile can be used more than once, but not all tiles will be used. one or more locations will remain empty. nitrosyl fluoride has the chemical formula nof nitrogen has five valence electrons, oxygen has six, and fluorine has seven. complete the lewis structure for this covalent compound. f n = = = . : : 0 : reset next um. all rights reserved us 2
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Chemistry, 23.06.2019 02:30
What type of energy conversion occurs when you place your feet near the fire place and they become warm
Answers: 1
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