Classifying Matter
Which of the following is not a pure substance: element, molecule, compound, mixture
What is mixture?
Diamonds are known for their
What is hardness?
Which of the following is an example of a chemical change: ice melting, pounding gold into a coin, paint fading, a puddle of water evaporating
What is paint fading?
Lead has a density of 11.3 g/cm3 and a mass of 282.5 g. What is the volume?
What is 25 cm3?
H20
What is Water?
The chemical formula for water, H20, means that each water molecule contains what?
What is 2 hydrogen atoms and 1 oxygen atom
Helium is used in balloons because it is
What is lighter than air?
Which of the following is an example of a physical change: dissolving, evaporating, bending, all of these are correct
What is all of these are correct?
What is the density of a sample of liquid that has a volume of 125 mL and a mass of 200 g?
What is 1.6 g/mL?
Cu
What is Copper?
How many atoms are in a single molecule of Fe2O3
What is 5 atoms?
A chemical property of copper is it's
What is reactivity?
A chemical change occurs whenever
What is a new substance forms?
The mass of 20 L sample of gas with a density of 0.04 mg/L is
What is 0.8 mg?
C12H22O11
What is Table Sugar?
A group of atoms that acts as a unit is called
What is molecule?
Which of the following is an example of a chemical property: reactivity with oxygen, solubility in water, boiling point, density?
What is reactivity with oxygen?
Knowing the chemical properties of a substance will tell you how the substance
What is reacts with other substances?
A substance has a mass of 360 g and a volume of 7.5 mL. What is the density?
What is 48 g/mL?
Fe2O3
What is Iron Oxide or Rust?
Matter is defined as anything that
What is has mass and takes up space?
Which of the following is not a physical property of iron: melting point, ability to rust, color, conductivity
What is ability of rust?
Which tool is best for separating a mixture of sand and water
What is a filter?
Steel has a density of 7.8 g/cm3. What is the mass of a block of steel with a volume of 600.0 cm3
What is 4,700 g?
NaCl
What is Table Salt?