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Chemistry, 24.11.2019 05:31 briannabo08

Which of the following substances is an element? a. carbon (c) b. water (h2o) c. methane (ch4) d. brass (cu + zn)

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Which of the following substances is an element? a. carbon (c) b. water (h2o) c. methane (ch4) d. b...
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