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Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.
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Compare and contrast physical changes with chemical changes.
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Find the number of grams of hcl needed to react completely with .50 moles of magnesium.
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Abenzene molecule is made up of six carbon atoms and six hydrogen atoms. what is the chemical formul...
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