Unformatted text preview: Many possibilities: Reddish-brown, melts at 14 °C, density is 0.897 g/cm 3 , poor conductor of electricity, etc. In this example all of the physical properties were intensive. 3. (3 pts) Which of the following are NOT SI base units? [a] Kelvin [e] Celsius (it’s Kelvin) [b] meter [f] liter (a derived unit) [c] gram (it’s kilogram) [g] second [d] kilogram [h] mole 4. (3 pts) Give the number of significant figures for each number. [a] 8.2 Gs [b] 0.000034250 cm [c] 1.702 × 10 3 kL 2 sig figs 5 sig figs 4 sig figs 5. (4 pts) One thousand milligrams (mg) equal one gram (g). Ten decigrams (dg) equal one gram (g). How many mg are in 143.2 dg? 1432 1 10 1000 1 14320 . dg g dg mg g mg × × = 6. (1 pt) What element has the chemical symbol O? Oxygen...
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- Fall '10
- Chemistry, SI base unit, General Conference on Weights and Measures, International System of Units, Kilogram, Sig Figs