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The mass of calcium hydrogen

When solid calcium is placed in water, it undergoes a vigorous reaction that produces solid calcium oxide, CaO(s) and hydrogen
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2. asked by julie
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How many atoms of each element are in the chemical formula Ca(OH)2?1 calcium, 1 oxygen, and 1 hydrogen 1 calcium, 2 oxygen, and
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A certain amount of calcium reacts with water and the formed hydroxide 49g completely neutralized phosphoric acid. Calculate the
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2. asked by Jessica
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The mass of calcium hydrogen carbonate that would be found in 52.0L of hard water in a bathtub is _______________ g.The amount
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2. asked by Cheryl
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Using the periodic table, identify which of the following elements has two valence electrons.(1 point)Responses chlorine
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2. 39 views
the recommended daily allowance of calcium is 1.2 g. calcium carbonate contains 12.0 % calcium by mass. how many grams of
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2. asked by Anonymous
3. 6,787 views
At STP, 1.00 g of calcium is placed into an acidic solution, and 407 mL of hydrogen gas is collected. What is the ratio of moles
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2. asked by George
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95% of organic macromolecules are made up of the following elements:(1 point)Responses carbon, hydrogen, calcium, iron carbon,
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2. 46 views
Calculate the maximum mass of calcium metal that should be used in an equivalent mass determination, with a 100 ml gas measuring
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2. asked by Brit
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In the chemical reaction below, calcium metal and water react to form calcium hydroxide and hydrogen gas.calcium metal + water
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2. 44 views