Misc
The Atom
The Periodic Table
Reactions
Mole
100
What is a pi bond?
single bond
100
When not participating in bonding, atoms have a charge of what?
Neutral
100
Name one statement found in Dalton's atomic theory
-all matter is made of atoms
-atoms of the same element are identical
-atoms cannot be divided
-in reactions atoms are rearranged
100
What type bond forms between a metal a nonmetal?
Ionic Bond
100
How many molecules are found in one mole of a substance?
6.02 x 10^23
200
Water is an example of what shape?
Bent
200
What is added together to find the atomic mass?
Protons and neutrons
200
Who has a larger electronegativity?
Cl or Ar
Cl
Ar does not participate in bonding, therefore, will not have electronegativity
200
Name 3 evidences of a chemical change
Light, heat, sound, gas, precipitate, color change, odor
200
How many moles of oxygen are found in CoCl2?
0
300
What is the name of PCl5?
Phosphorus pentachloride
300
What element has 120 neutrons and an atomic mass of 200?
Mercury
300
Who are exceptions to the octet rule?
H and He
300
What type of reaction is this?
Mg + O => MgO
Synthesis
300
Convert 2.3 mole of oxygen to grams
36.8 g oyxgen
400
What does this symbol mean?
Yield
400
Draw the lewis dot structure for Al
400
How is the periodic table organized?
Atomic number, # of protons
400
In order for chemical reactions to occur, reactants have to do what in order to produce energy?
Collide with one another
400
How many molecules are found in 2.3g of oxygen?
8.65 x 10^22 molecules O
500
What atoms are involved in hydrogen bond?
H + NOF
500
Calculate the average atomic mass of nitrogen
Nitrogen- 14 (99.63%)
Nitrogen- 15 (0.370%)
14.01 amu
500
What trend decreases to the right of a period and up a group?
Atomic Radius
500
Energy released in a reaction is what type of reaction?
Exothermic
(Combustion will be accepted)
500
How many grams of hydrogen are found in 1.3 mol of NH4NO3?
5.25g hydrogen