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Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 22.06.2019 15:00
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ΒΊc and rises to an altitude where its volume is twenty times the original volume and its temperature is β 50.0ΒΊc ?
Answers: 2
Why should there be a connection between an element's electron configuration and its location of the...
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