Solubility Curve
Concentration
Periodic Table
Atomic Structure
Random
100
What mass (in grams) of KCl will dissolve in 100g of H2O at 80° C? Show work on board
50g KCl/100g H20
100
15 g KCl in 100 g water (express as %) Show work on white board!!
Part/Whole 15/115 (100) = 13 %
100
What is the element that has an atomic number of 47?
Silver; Ag
100
What is the name of: NaBr
Sodium Bromide
100
Positively charged particles in an atom are the
Protons
200
DOUBLE JEOPARDY!! At what temperature dissolves 21 grams of KNO3?
10° C
200
15g KCl in 150g water. (express as %) Show work on board
15/165 (100) = 9.1%
200
# of protons and # of electrons are the same as the _______________.
Atomic number
200
Potassium Chloride: Write the cation, anion, and formula on the white board. (include charges)
Cation: K+1 Anion: Cl-1 Formula: KCl
200
The “glue” that holds different kinds of atoms together is the attraction between:
opposite charges or protons (+) and electrons (-)
300
A supersaturated solution of potassium nitrate is formed by adding 95 g KNO3 to 100 g water, heating until the solute completely dissolves, and then cooling the solution to 50° C. If the solution is agitated, how much potassium nitrate will precipitate? Show work on board
95 - 82 = 13g KNO3
300
DOUBLE JEOPARDY!!!!!!! 75 g lithium ions dissolved in 300 g water (express as pph) Show work on board
75/375 (100) = 20 pph
300
Name these elements and spell them correctly on the white board. 1. Sn 2. B 3. P
1. Tin 2. Boron 3. Phosphorous
300
Aluminum Nitrite: Write the cation, anion, and formula on the white board. (include charges)
Cation: Al+3 Anion: NO2-1 Formula: Al(NO2)3
300
Ionic substances that include the hydroxide ion in their structure are called
bases
400
What is the minimum mass (in grams) of 50° C water needed to dissolve 90 g of KNO3? Show work on board
82/100 = 90/X (Cross multiply, solve for X) X = 109.8g H2O
400
0.024 g sucrose dissolved in 150 g water (express as ppm)
0.024/150.024 (1,000,000) = 159.9 ppm
400
Name 2 alkali metals and noble gases elements:
Alkali Metals: Li, Na, K, Rb, Cs, Fr Noble Gases: He, Ne, Ar, Kr, Xe, Rn
400
DOUBLE JEOPARDY!!!!!!!!!!!!!! Iron (III) Sulfate: Write the cation, anion, and formula on the white board. (Include charges)
Cation: Fe+3 Anion: SO4-2 Formula: Fe2(SO4)3
400
Fill in the blank: As temperature increases solid solubility ___________ and gas solubility ___________.
increases, decreases
500
What is the minimum mass of 55° C water needed to dissolve 65 g of NaCl? Show work on board
39/100 = 65/X (cross multiply, solve for X) X = 166.67 g H2O
500
Two Parts: 1. 35g sugar dissolved in 250g water (express as %) 2. 75 grams of water is added to the mixture.
1. 35/285 (100) = 12.28% 2. 285 + 75 = 360; 35/360 (100) = 9.72%
500
1. Name 3 of the 6 metalloids. 2. What group is the second most active group?
1. B, Si, Ge, As, Sb, Te 2. Alkaline Earth - Group #2
500
5 Al2(SO4)3 aluminum sulfate, provide the following information: 1. Total number of oxygen atoms; 2. Total number of sulfur atoms; 3. The number of molecules
1. 60 2. 15 3. 5
500
Molecules are composed of two or more ____________. They are formed from the _________ of electrons.
nonmetals, sharing
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