Chemistry, 28.01.2021 03:40 DavidsonSaid
Gas cloud 1 is likely to form a star. Gas cloud 2 is not. Based on this information, match the given conditions with each cloud.
-Its temperature stays well
below 14 million Kelvin.
-Its volume shrinks and density
increases due to gravity.
-Its temperature surpasses
14 million Kelvin.
-It is spread out, with a greater volume and
lesser concentration of elements.
-Its hydrogen atoms shed their electrons.
-Its hydrogen atoms retain their electrons.
Answers: 3
Chemistry, 22.06.2019 07:00
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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
Chemistry, 22.06.2019 20:30
Water undergoes a large change in density at 0 β c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 β c given that
Answers: 2
Gas cloud 1 is likely to form a star. Gas cloud 2 is not. Based on this information, match the given...
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