| Sections | |||
|---|---|---|---|
| Periodic Table | 28 mins | 0 completed | Learn |
| Mole Concept | 37 mins | 0 completed | Learn Summary |
| Isotopes | 12 mins | 0 completed | Learn Summary |
| Mass Spectrometry | 9 mins | 0 completed | Learn |
| Subatomic Particles | 8 mins | 0 completed | Learn |
| Atomic Theory | 16 mins | 0 completed | Learn |
| Thomson's Cathode Ray Tube Experiment | 8 mins | 0 completed | Learn |
| Oil Drop Experiment | 7 mins | 0 completed | Learn |
| The Chadwick Neutron Experiment | 6 mins | 0 completed | Learn |
| Gold Foil Experiment | 10 mins | 0 completed | Learn |
| End of Chapter 2 Problems | 28 mins | 0 completed | Learn |
| Additional Guides |
|---|
| Periodic Table Charges |
| Calculating Molar Mass |
| Calculating Grams to Moles |
A compound contains only calcium and fluorine. A sample of the compound is determined to contain 2.00 g of calcium and 1.90 g of fluorine. According to the Law of Definite Proportions, how much calcium should another sample of this compound contain if it contains 2.85 g of fluorine?
a. 2.71 g
b. 4.00 g
c. 3.00 g
d. 4.50 g
e. 6.00 g
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