Stoichiometry
Subatomic Particles
Electrons in Bonding
Solutions
Potpourri
100
What quantity is measure in g/mol?
Molar Mass
100
The subatomic particle with a mass of nearly 'zero'.
What is the electron?
100
The number of dots on a the Lewis Dot Diagram of a neutral carbon atom.
What is 4 dots, :C:?
100
In general, salts dissolve better in _________ temperatures.
What is 'higher'?
100
What is the name of the longest day of the year
the summer solstice
200
During a reaction, what is the name of the reactant that 'runs out' first?
Limiting Reactant
200
The subatomic particle that gives an element it's identity.
What is a proton?
200
The number of electrons that sodium tends to gain or lose in a chemical reaction:
dotNa
What is 'lose 1 electron'?
200
The molarity of a solution in which 0.5 moles are dissolved in 0.25 L of solution.
What is 2M, "Two Molar"?
200
Which planet has the most moons?
Jupiter
300
After a reaction, what is the name for the reactant that is 'left over'?
XS (excess) reactant
300
The number of neutrons present in this isotope of oxygen:
What is 7 neutrons?
300
The option below that correctly models Lithium Oxide.
What is Option III?
300
The name for the acid, HCl.
What is hydrochloric acid?
300
What is the longest running American animated TV show
Simpsons
400
How many moles of oxygen (O2) are in 16 g of oxygen gas?
0.5 moles
400
The (neutral) element that is represented by this Bohr model:
What is Nitrogen?
400
The geometry (shape) of a Boron Trifluoride molecule:
What is trigonal planar?
400
Adding salt to water tends to ________ the freezing point of the water.
What is lower?
400
Area 51 is located in which state?
Nevada
500
Using the equation below. How many moles of water are produced from 4 moles of H2?
2H2 + O2 -> 2H2O
4 moles of water
500
Ionization energy describes the energy required to remove this subatomic particle from an atom.
What is the electron?
500
The number of bonding electrons are pictured in the Lewis structure below:
What are 6 bonding electrons?
500
Adding solute tends to ______ vapor pressure by inhibiting evaporation, while have no effect on condensation at the liquid-gas boundary.
What is reduce?
500
Which members of the Beatles are still alive?
Paul and Ringo