What is the percent composition of carbon, in heptane, C7H16?
Answer with number only, n...
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Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?
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The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a
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At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
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