Show:
Density
Metals, Non metals
Physical Properties of Matter
Chemical Properties
Random
100
Density=? Mass=18.2 grams Volume=2 mL SOLVE for density, using CORRECT UNITS!
Density=9.1 g/mL
100
_____________ is the ability of a substance to be molded, shaped, or hammered into sheets, without breaking.
Malleable or Malleability
100
True or False: Volume, density, color, mass, hardness, smell, and texture are all PHYSICAL properties of matter.
True!
100
Which of the following is an example of a CHEMICAL (shows a chemical reaction has occurred) property? A. density B. shape C. flammability
C. flammability-because once it's burned, it cannot be changed back into it's original substance.
100
When mixing two chemicals in a beaker that produce a gas (like baking soda and vinegar), the correct procedure for observing odor is to ________.
use a WAFTING motion
200
Density=? Mass=42.6 grams Volume=6 mL
Density=7.1 g/mL
200
True or False: A nonmetal is usually dull, brittle, and not a good conductor.
True
200
_______________ is the ability of one mineral to scratch another mineral; or the ability to RESIST being scratched.
Hardness
200
Which of these is an example of a chemical reaction? A. boiling water B. iron nail rusting C. dissolving sugar in tea D. grinding up corn
B. iron nail rusting (cannot change rust back into iron)
200
Which piece of equipment is most important to use during an experiment involving a chemical reaction? A. gloves B. tongs C. fire extinguisher D. safety goggles
D. SAFETY GOGGLES-protect your eyes!
300
Which pieces of equipment do you need to conduct an investigation over mass and volume? A. graduated cylinder, spring scale B. graduated cylinder, triple beam balance C. beaker, spring scale
B. graduated cylinder (VOLUME) and triple beam balance (MASS)
300
_____________ means a substance can be stretched into a wire without breaking.
Ductile or ductility
300
You are examining an object in class. It is pale yellow, brittle, solids, and is not very shiny. This sample is most likely a _________________ A. nonmetal B. metal C. metalloid D. semi-conductor
A. nonmetal (brittle, dull)
300
Which of the following best describes a CHEMICAL change in an iron nail, when it's exposed to oxygen? A. the nail looks shiny and silvery B. the nail, when rubbed with a magnet, attracts iron powder C. the nail left outside turns a rusty orange color
C. the nail left outside turns a RUSTY orange color
300
You are wearing goggles as you combine a liquid and a solid in lab. The mixture rapidly bubbles and overflows from the beaker. What other piece of safety equipment should you be wearing? A. Tongs B. Apron C. Fire Blanket D. None of the above
B. APRON!
400
You find a strange shaped, heavy rock. You want to find the density, so you can determine what it is. It's mass is 48.6 grams It's volume is 6 mL What is it's density?
8.1 g/mL
400
Luster, ductility, conductivity and ________ describe METALS.
Malleability
400
You are testing samples of metals, nonmetals, and metalloids. You use a battery, wire, and a bulb to see if the samples will complete the circuit to cause the bulb to light up. Then, you use a bright light on each sample. What are you testing? A. streak and hardness B. luster and conductivity C. color and conductivity D. hardness and luster
B. luster/shine with light and conductivity (transferring energy or heat)
400
In class, you are using marshmallows to determine if a chemical change has taken place. Which marshmallow shows a chemical change? A. Marshmallows melting in cocoa B. Marshmallows dipped in chocolate C. A roasted marshmallow
C. A ROASTED MARSHMALLOW (it's been cooked in fire)
400
How a mineral appears when it reflects light is known as __________________.
Luster
500
See question #10.
H. 5.0 g/cm3
500
You need to find the density of your house key. The volume of the key is 5 mL, and the mass is 39.5 g. Aluminum has a density 2.70g/mL Steel has a density of 7.90 g/mL Copper has a density of 8.90 g/mL What is they key made out of????
STEEL, 7.90 g/mL
500
Number 16-Density
H. 3 g/mL
500
Number 20
J. 1.8 g
500
Number 15
A. The mineral can scratch Apatite (7) and every mineral with a hardness scale LOWER than 7!