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The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?
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Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
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How many neutrons does an element have if its atomic number is 50 and its mass number is 166
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Cathode rays are composed of what fundamental particle?...
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