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How much energy (in calories) is needed to melt 400 grams of ice at 0 °C, heat it, and boil it all away?
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Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d
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Find the number of moles of argon in 364g of argon.
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What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol
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What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases
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How much energy (in calories) is needed to melt 400 grams of ice at 0 °C, heat it, and boil it all a...
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