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gogolik [260]
3 years ago
12

"Do you own a dog?" might be an example of which concept?

Chemistry
1 answer:
Anna11 [10]3 years ago
6 0

C: Control Question

Have a good day :)

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True

Explanation:

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What mass, in grams, of carbon dioxide gas can be produced by complete combustion of 24.0 grams of carbon?
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A compound is 80.0% carbon and 20.0% hydrogen by mass. assume you have a 100.-g sample of this compound. the molar mass of the c
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Basis of the calculation: 100g
 
For Carbon: 
 Mass of carbon = (100 g)(0.80) = 80 g
  Number of moles of carbon = (80 g)(1 mole / 12g) = 20/3

For Hydrogen:
  Mass of hydrogen = (100 g)(0.20) = 20 g
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Dividing the answer,
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Since, the molar mass given for the molecular formula is 30.069 g/mol, the molecular equation is,
    C2H6

ANSWER: C2H6

 
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Simon has collected three samples from the coral reef where he observes marine life. He must determine whether each one is a pur
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SAMPLE A - <span>pure substance.
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</span>
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