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Exam 2 review - 6.6B How many grams are in 4.55 x 1023...

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1. 4.55 2. 1.74 x 10 49 3. 63.6 4. 6.02 x 10 23 5. 48.0 6.6B How many grams are in 4.55 x 10 23 copper atoms?
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1. 4.55 2. 1.74 x 10 49 3. 63.6 4. 6.02 x 10 23 5. 48.0 6.6B How many grams are in 4.55 x 10 23 copper atoms?
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1. 2.45 x 10 22 2. 1.47 x 10 22 3. 2.95 x 10 22 4. 1.47 x 10 21 5. 6.02 x 10 23 6.10C How many molecules are in 2.45 g of chalk (calcium carbonate)?
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1. 2.45 x 10 22 2. 1.47 x 10 22 3. 2.95 x 10 22 4. 1.47 x 10 21 5. 6.02 x 10 23 6.10C How many molecules are in 2.45 g of chalk (calcium carbonate)?
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1. 6.90 2. 3.45 3. 5.75 4. 13.5 5. 17.3 6.11B How many moles of oxygen are in 3.45 mol of diphosphorus pentoxide?
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1. 6.90 2. 3.45 3. 5.75 4. 13.5 5. 17.3 6.11B How many moles of oxygen are in 3.45 mol of diphosphorus pentoxide?
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1. CH 1.5 O and C 2 H 3 O 2 2. C 3 H 5 O 3 and C 6 H 10 O 6 3. C 4 H 6 O 4 and C 8 H 12 O 8 4. C 4 H 6 O 4 and C 2 H 3 O 2 5. C 2 H 3 O 2 and C 4 H 6 O 4 6.19C An unknown compound has a molar mass of 118.09 g/ mol. Given the following percent compositions: 40.7% C, 5.10% H, and 54.2% O; calculate the empirical and molecular formula, respectively
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1. CH 1.5 O and C 2 H 3 O 2 2. C 3 H 5 O 3 and C 6 H 10 O 6 3. C 4 H 6 O 4 and C 8 H 12 O 8 4. C 4 H 6 O 4 and C 2 H 3 O 2 5. C 2 H 3 O 2 and C 4 H 6 O 4 6.19C An unknown compound has a molar mass of 118.09 g/ mol. Given the following percent compositions: 40.7% C, 5.10% H, and 54.2% O; calculate the empirical and molecular formula, respectively
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1. PbCl 2 2. CaSO 4 3. NaNO 3 4. Al(OH) 3 5. all are strong electrolytes. 7.7C Which of the following compounds are a strong electrolyte?
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1. PbCl 2 2. CaSO 4 3. NaNO 3 4. Al(OH) 3 5. all are strong electrolytes. 7.7C Which of the following compounds are a strong electrolyte?
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1. ammonia 2. nitrogen dioxide 3. hydrogen 4. carbon dioxide 5. nitrogen 7.20C Which gas is released from the reaction of calcium carbonate with nitric acid?
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1. ammonia 2. nitrogen dioxide 3. hydrogen 4. carbon dioxide 5. nitrogen 7.20C Which gas is released from the reaction of calcium carbonate with nitric acid?
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1. 6 2. 3 3. 1 4. 5 5. 4 7.21B How many molecules of carbon dioxide are produced from the combustion of one molecule of propane (C 3 H 8 )?
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1. 6 2. 3 3. 1 4. 5 5. 4 7.21B How many molecules of carbon dioxide are produced from the combustion of one molecule of propane (C 3 H 8 )?
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1. synthesis/combination 2.
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