Atoms
Ionic Compounds
pH
Water
Misc
100
Name the 3 types of subatomic particles and give their charges.
Proton - positive Neutron - neutral Electron - negative
100
In an ionic compound, electrons are being________. A) Shared B) Transferred C) Blown up D) made
B: Transferred
100
pH is dependent upon_________. A) temperature B) H+ ions C) weight D) # neutrons
B) H+ ions
100
Water is a very (polar/non-polar) molecule.
Polar
100
What is the difference between a molecule and a compound?
Molecule - 2 or more atoms of the SAME element. Compound - 2 or more atoms of DIFFERENT elements.
200
Where are the electrons located? A) Nucleus B) Electron Shells/Cloud C) Cytoplasm D) Proton
B: Electron Shells/Cloud
200
When naming a compound using monoatomic ions, the second word will end in__________. A) -ate B) -ade C) -ide D) -on
C) -ide Example: Calcium Chloride
200
What does a buffer do?
Maintains a constant pH
200
The side of the molecule with the oxygen has a slightly negative charge. True or False?
True
200
Which is more dense, ice or water?
Water
300
The atomic # of an element represents ____________. A) # neutrons B) # electrons C) # protrons D) mass
C: # protons in the nucleus
300
Give me the name of this compound. FeCl3
Iron (III) Chloride
300
High H+ equals a ________pH. (high or low)
low
300
Water is made with __________ bonds and uses ____________bonds to attach to other molecules.
Covalent, Hydrogen
300
Why is it possible for a bug to stay at the surface of water? Looking for 2 specific words in your explanation.
The cohesive forces between water molecules gives it such a high surface tension.
400
How do you calculate the # of neutrons in the nucleus?
Atomic mass - # protons = # neutrons
400
Write the formula for Aluminum sulfide.
Al2S3
400
If it tastes bitter and feels slippery it is a __________ (acid/base).
Base
400
Water is the ____________solvent.
Universal
400
A period on the periodic table is the _______. A) vertical columns B) horizontal rows C) # valence electrons D) # protons
B: Horizontal Rows
500
Define valence electron.
# electrons in outermost shell
500
What is the formula for magnesium oxide?
MgO
500
What is the normal pH of human blood?
7.4
500
What is the difference between cohesion and adhesion?
Cohesion is water bonding to water. Adhesion is water bonding to other things.
500
Who originally came up with the periodic table?
Dmitri Mendeleev
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