Matter
Composition & Reactions
Atomic Theory
Periodic Table
Atomic Motion
100
Elements that CANNOT be broken down by chemical means are
What is pure substance?
100
At STP, how much space does 1 mole of gas occupy?
What is 22.4L?
100
Is Cl-2 polar covalent or nonpolar covalent?
What is nonpolar covalent?
100
Elements on the Periodic Table are arranged in order of
What is increasing atomic number?
100
Freezing and condensation are what type of phase change...endothermic or exothermic?
What is exothermic?
200
This type of element is found on the left side of the periodic table.
What is a metal?
200
Which formula is both an empirical formula and a molecular formula...C2H6 or C3H9O2?
What is C3H9O2?
200
Given the electron configuration 1s2 2s2 2p6 what group is the element in?
What is Noble Gases?
200
Metallic properties _________ from left to right on the Periodic Table.
What is decrease?
200
A process that absorbs heat from the surroundings is an _ change.
What is endothermic?
300
This type of bond is between a metal and a nonmetal.
What is an ionic bond?
300
What type of reaction is CaS --> Ca + S?
What is decomposition?
300
How many protons, electrons, and neutrons are in oxygen-18?
What is 8, 8 & 10?
300
Ionization energy __________ from left to right on the Periodic Table.
What is increase?
300
The colder the particles in a substance, the ______ they move.
What is slower?
400
Name this compound...BeO
What is beryllium oxide?
400
How many grams are in 4.0 x10^23 atoms HCl?
What is 24.2 grams?
400
Given the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d2 what period and block is this element in?
What is 4 and d-block?
400
The ability of an atom of an element to attract electrons when the atom is in a compound is ____________.
What is electronegativity?
400
The warmer the particles the __________ apart they are.
What is farther?
500
Write the formula for calcium chlorate.
What is Ca(ClO3)2?
500
What is the percent by mass of nitrogen in AlN?
What is 34.2%?
500
When a electron moves from an excited state to a lower state what is emitted?
What is light?
500
Which element has the greatest electronegativity... Li, Na, K, or Rb?
What is Li?
500
On a heating curve along the plateau (flat part) what happens to potential energy?
What is increases?
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