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What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources
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How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work
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An atom of a certain element has 19 protons, 19 electrons, and a mass number of 39. This element is...
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