| A | B |
|---|
| Tearing a piece of paper | Physical Change |
| Burning a piece of paper | Chemical Change |
| Dissolving table salt in water | Physical Change |
| Baking a cake | Chemical Change |
| Rusting of an iron nail | Chemical Change |
| Boiling water | Physical Change |
| Tarnishing of silver | Chemical Change |
| Mixing vinegar and baking soda | Chemical Change |
| Burning of wood | Chemical Change |
| Bending of a copper wire | Physical Change |
| Melting chocolate | PHysical Change |
| Evaporating Milk | Physical Change |
| Condensation of Water | Physical Change |
| A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density? | d = 2.70 g/mL |
| Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury. | d = 13.6 g/mL |
| What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL. | g = (0.789 g/mL) (200.0 mL) = 158 g |
| A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper? | d = 1896 g / 212.52 cm3 = 8.9 g/cm3 |
| A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 703.55 g. From this information, calculate the density of carbon tetrachloride. | d = 357.75 g / 225 mL = 1.59 g/mL |
| Calculate the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g. | d = 1.84 g/mL |
| Find the mass of 250.0 mL of benzene. The density of benzene is 0.8765 g/mL. | g = (0.8765 g/mL) (250.0 mL) = 219.1 g |
| A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weighs 1587 g. From this information, calculate the density of lead. | g = (0.8765 g/mL) (250.0 mL) = 219.1 g |
| 28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark, From this information, calculate the density of iron. | d = 7.92 g/mL |
| What volume of silver metal will weigh exactly 2500.0 g. The density of silver is 10.5 g/cm3. | cm3 = 2500.0 g / 10.5 g/cm3 = 238 cm3 |
| What is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3? | d = .85 g/cm3 |
| A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood? Would the piece of wood float in water? (volume = L x W x H) | d = 1.11 gm/cm3 |
