Rakesh measured the height of students in his class and made a grouped frequency table of the data. The mid values of the class intervals that he made were 122, 126, 130, 134, 138 and 142. Which of these could be one of the class intervals that he made?
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Answer: here
Step-by-step explanation:
One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.
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