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Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.
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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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Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
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Chemistry, 22.06.2019 14:00
What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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What is reason of the formation of tectonic plates?...
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