What’s the key point in this
What does this mean???
rubbing two solids together often...
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Chemistry, 22.06.2019 05:30
What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?
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Drug abuse will not lead to physical and psychological dependence. true or false ?
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Which of the following is a physical property flammability heat of combustion solubility and toxicity
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Chemistry, 23.06.2019 05:50
Which of the following isotopes has the same number of neutrons as phosphorus-31?
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