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How many atoms or molecules are there in a mole of a substance?
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Use the equation n2 + 3h2=2nh3 if 8.0g n2 react, how many grams of nh3 will be produced
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A0.1 mm sample of human blood has approximately 6000 red blood cells. an adult typically has 5.0 l of blood. how many red blood cells are in an adult? (1 ml = 1 cc). use "e" for scientific notation.
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Chemistry, 24.06.2019 03:00
1. which of the following is an si base unit for time? (2 points) decades hours minutes seconds 2.which of the following tools should a scientist use to measure an object in milligrams? ( graduated cylinder pan balance tape measure thermometer 3. which of the following prefixes represents the largest value? (2 points) giga hector kilo milli
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How the fossil record provides relative age...
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