We Didn't Learn This
The temperature at which water becomes water vapour.
100oC or 212oF
What are the 4 states of matter?
Solid, liquid, gas, plasma
What is the atomic number of neon (Ne)?
10
DOUBLE POINTS
How many energy levels does calcium have?
What is the name for BaBr2
Barium bromide
Which area of study in chemistry deals with compounds made of carbon (living things)?
Organic chemistry
What is the difference between elements and compounds?
2 or more elements make up a compound.
Name all 3 subatomic particles AND their charges.
Protons +
Neutrons 0
Electrons -
How many electrons does the first shell hold?
2
Name N2Cl5
Dinitrogen pentachloride
Name 2 of the steps in the scientific method
1) Making observations 2) Proposing a hypothesis 3) Analyzing data 4) Drawing a conclusion 5) Sharing the results
Is the atomic number located above or below the element's symbol on the periodic table?
Above the symbol.
How many neutrons does fluorine contain? (Mass # = 19)
Why are alkali metals so reactive?
They only have one valence electron which makes them unstable!
DOUBLE POINTS
What is the chemical formula for: ammonium phosphide
(NH4)3P4
Name 4 ways to identify a chemical reaction
Change in color/odor/texture/taste, etc.
Give off heat or light
Produce a gas (bubbles)
Form a precipitate (solid)
Dalton thought that what were the smallest units of matter?
Atoms
What is an isotope?
Same element, different mass # (different # neutrons)
How many valence electrons are found in Halogens?
7
What is the chemical formula of iodine gas?
I2
What was Mr. Symington's least favourite subject during his first undergrad? (Hint: it is now something he helps his students with in a lunch time club)
Genetics
What is the atomic number of Uranium-226?
92
What is the charge on Oxygen when it ionizes?
-2
What is the current model of the atom called?
Quantum Mechanical Model or Electron Cloud Model
What is the chemical formula of calcium nitrate?
Ca(NO3)2