What's the Matter?
Classify the following as an element, compound, heterogeneous mixture, or homogeneous mixture:
Dirt
Heterogeneous Mixture
Chemical or Physical Property?
Luster
Physical
What is the density of a block that has a mass of 4.00 grams and a volume of 16.00 cm3?
.25 g/cm3
What glassware would be best for measuring 15 mL of water?
graduated cylinder
This separation technique would be used to remove iron nails from the grass.
Magnets
Classify the following as an element, compound, heterogeneous mixture, or homogeneous mixture:
Bismuth
Element
Chemical or Physical Property?
Conductivity
Physical
a small cube has a mass of 80 grams and a volume of 6 cm3. What is the cube most likely made out of?
Densities:
Iron: 7.8 g/cm3
Gold: 19.3 g/cm3
Mercury: 13.5 g/cm3
Aluminum: 2.7 g/cm3
Mercury. (Density = 13.33 g/cm3)
What type of equipment would you use to measure 2.00 grams of baking soda?
Balance (or scale)
This separation technique is used to dehydrate herbs when warm air is blown over the herbs to dry them.
Classify the following as an element, compound, heterogeneous mixture, or homogeneous mixture:
Carbon monoxide
Compound
Chemical or Physical Property
Boiling Point
Physical
Will a cube that has a mass of 1500 g and sides equaling that are 12 cm long float in water?
yes, density = 0.868 g/cm3
Erlenmeyer Flask
This separation technique allows paper towels, diapers, and other things that should not be flushed to be be removed from wastewater
filtration
Classify the following as an element, compound, heterogeneous mixture, or homogeneous mixture:
Pure Water
Compound
These 2 properties are opposites. One means that the liquid is thick and slow moving, the other means that the liquid easily flows.
viscous, fluid
What is the density of a block with a mass of 45 grams and sides that are 3 cm, 5 cm, and 4 cm in length?
0.75 g/cm3
Name 2 things you could use to stir a solution with.
glass stir rod, magnetic stir bar
This separation technique can purify a mixture by separating compounds by size.
Chromatography
Classify the following as an element, compound, heterogeneous mixture, or homogeneous mixture:
Tap water
Homogeneous Mixture
These 2 properties mean that something can be hammered into a foil or drawn into a wire.
Malleability, Ductility
The density of gold is 19.30 g/cm3. If you have a piece of gold that is 0.25 grams, what is the volume?
0.013 cm3
This piece of glassware has the 0 mL measurement at the top and the 50 mL measurement on the bottom. Liquid is dispensed from a nozzle at the bottom.
buret
This separation technique makes blood donation more efficient and effective by separating blood components by density.
centrifuging