Law of Conservation of Matter/ Mole Conversions
Atoms, Molecules,Elements, Mixtures, and Compounds
Physical vs. Chemical changes and properties
Periodic Table
States of Matter/ Extensive vs. Intensive properties
100

What is the definition of molar mass?

What is "the mass of one mole of a substance."

100

Name the subatomic particles of the atom from the smallest to the largest.

What is the electron, proton = neutron

100
Is density a chemical or physical property?
What is a physical property.
100
How many electrons are present in a neutral atom of Magnesium?
What is 12 electrons
100

Is mass an extensive or intensive property?

What is extensive.
200

Find the molar mass of NaCl.

What is 58 g/mol.

200
Copper is an element that is used in electrical wires. What is the smallest unit of copper that still maintains the characteristics of copper?
What is an atom.
200

Name a chemical change.

Examples: burning wood, mixing vinegar and baking soda, an explosion, etc. 

200
In what group are the noble gases located?
What is group 18.
200
True/ False. Particles that make up matter are in a state of constant motion.
What is true.
300

Find the molar mass of CH3Br.

What is 95 g/mol

300

Who coined the word for "atoms"?

Democritus

300
Which is not a physical property of silver? A. Silver is white B. The density is 10.49 g/cmŸ C. The melting point is 962” C D. Silver does not react with water
What is silver does not react with water
300
The atomic number is the same as the number of what particles?
What is protons.
300
Why would ice cubes float in a glass of water?
What is because the ice cubes are less dense than the glass of water.
400

How many atoms are in 4.3 moles of argon?

What is 2.59x1024 atoms. 

400
Is carbon dioxide considered to be a mixture or compound?
What is a compound.
400
True/False. Different kinds of molecules are present after a physical change but not after a chemical change.
What is False
400
How many neutrons are present in Vanadium? (round to the nearest whole number)
What is 28.
400
Explain how the particles of each of the 3 states of mater move.
What is solids vibrate in place, liquids slide past each other, and gases move freely.
500

How many grams are in 3.2 moles of water?

What is 57.6 grams. 

500
Is air considered to be a mixture or compound?
What is a mixture
500
Would absorption or release of energy in the form of light, heat, or sound be a physical or chemical change?
What is a chemical change.
500
The element Silicon ( Si, atomic number 14 and atomic mass 28) is right above Germanium (Ge, atomic number 32 and atomic mass 73) in the periodic table. How many more electrons does germanium have than silicon?
What is 18 electrons.
500

Is color an extensive or intensive property?

What is intensive.

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