Classifying Matter
Which of the following is not a pure substance: element, molecule, compound, mixture
What is mixture?
LiF
What is Ionic?
Which of the following is an example of a chemical change: ice melting, pounding gold into a coin, a bike corroding, a puddle of water evaporating
What is a bike corroding?
How many atoms are in this formula?: Mg2(SO4)2
What is 12 atoms?
H20
What is Water?
The chemical formula for water, H20, means that each water molecule contains how many atoms of each element?
What are 2 hydrogen atoms and 1 oxygen atom
CO2
What is a Covalent Bond?
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?
How many atoms are in this formula?: CO2S3N2
What is 8?
Cu
What is Copper?
How many atoms are in a single molecule of Fe2O3
What is 5 atoms?
MgO
What is Ionic?
A chemical change occurs whenever
What is a new substance forms?
How many elements are in this compound?: CHMg3SO4
What is 5 elements?
He
What is Helium?
A single atom
What is an element?
Which of the following is an example of a chemical property: reactive with oxygen, dissolves in water, boiling point, or density?
What is reactive with oxygen?
The gas station combusted: What type of change is this?
What is a chemical change?
A substance has a mass of 360 g and a volume of 7.5 mL. What is the density? Hint: The formula for density is Mass/Volume.
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 measuring the mass of small objects?
What is a triple beam balance?
What is the density of an object with a mass of 6.2g and a volume of 3.1L? Hint: The formula for density is Mass/Volume.
What is 2g/L
NaCl
What is Table Salt?