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Which gases each make up less than 1 percent of Earth’s atmosphere? Select three options.
argon
oxygen
nitrogen
water vapor
carbon dioxide
Answers: 2
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If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
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What is the number of neutrons in an atom with atomic mass of 35
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Which gases each make up less than 1 percent of Earth’s atmosphere? Select three options.
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