General Chemistry Online: Companion Notes: Compounds: Classifying compounds: Quiz: Interpret formulas

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Compounds

Classifying compounds

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1. In four molecules of sulfuric acid, H₂SO₄, there are:

	4 atoms total.		4 H atoms; 4 S atoms; 4 O atoms.
	2 H atoms; 1 S atom; 4 O atoms.		8 H atoms; 4 S atoms; 16 O atoms.
	16 atoms total

2. The compound SF₆ is a colorless, odorless, extremely heavy gas, about 5 times as dense as air. A sample of 100 molecules of SF₆ contains

100 S and 600 F

1 S and 6 F

6 S and 6 F

600 S and 600 F

3. The total number of atoms in 10 molecules of CO₂ is:

none of these

4. The number of carbon atoms in 5 molecules of oxalic acid, H₂C₂O₄, is

5. How many atoms are in two molecules of blood sugar (C₆H₁₂O₆)?

none of these

6. The structures of the male and female sex hormones testosterone (C₁₉H₂₈O₂) and estradiol (C₁₈H₂₄O₂) are remarkably similar considering their profoundly different effects. Three molecules of testosterone contains how many more carbon atoms than three molecules of estradiol?

none of these

General Chemistry Online! Quiz: Interpret formulas