Half-Life/Decay
Balance, Name, Identify RXN
Matter/Density
Periodic Table/Reference Table
RANDOM!
100
Carbon-14 undergoes beta decay. What two products are produced?
Nitrogen-14 and an electron.
100
Name this polyatomic ion:
OH-
Hydroxide
100
What is the density of a solid that has a mass of 48g and a volume of 5.33 cm3?
9 g/cm3
100
What is the atomic mass of Oxygen?
16 amu
100
What term identifies the homogeneous mixture that forms when sugar is dissolved in a glass of hot water?
Solution
200
Thallium-202 undergoes gamma decay. What two products are produced?
Thallium-202 and a photon.
200
What is the chemical name of Cl2O7?
Dichlorine heptoxide
200
True/False:
Brass is a pure substance?
False
200
How many acetate ions would ionically bond to a single ammonium ion?
1
200
How many non-metals are listed on the left side of the periodic table?
1 - Hydrogen
300
What fraction of a radioisotope remains after 4 half-lives have elapsed?
1/16th
300
Balance:
___CO2 + ___H2O --> ___C6H12O6 + ___O2
6CO2 + 6H2O --> C6H12O6 + 6O2
300
An unknown substance that is cubic in shape has a mass of 28 g and each side of the cube is 3 cm in length. Will the substance float or sink in water?
Float
300
Which 7 elements typically exist diatomically?
H, O, F, Br, I, N, Cl
300
Draw the dot structure for Carbon Dioxide
400
Carbon-14 has a half-life of 5730 years. How much carbon-14 would have been present in an organism when it died if its remains are determined to be 17,190 years old and it currently has 57 grams of carbon-14?
456 grams
400
What type of reaction is this?
Lead reacts with iron (II) sulfate to produce lead (II) sulfate and iron
Single displacement
400
Calculate the mass of a liquid with a density of 2.5 g/mL and a volume of 15 mL.
37.5 g
400
Is the compound NH4I
Covalent, Metallic, or Ionic?
Ionic
400
Potassium iodide reacts with bromine gas to produce what two products?
(You may give the names or chemical formulas but they have to be 100% correct)
Potassium bromide and iodine
KBr + I2
500
The half-life of a radioisotope is known to be 56,905 years. If you started with 100 grams of the radio isotope, how much would remain after 14,750 years?
83.6 grams remain
500
Name the following compound:
H2PO4-
Dihydrogen phosphate ion
500
A graduated cylinder with water is used to measure the displacement of a rock. When the rock is added the water level rises from 50 mL to 78.4 mL. The rock has a mass of 85.2 g. What is the density of the rock?
3 g/cm3
500
Silver Oxide has a chemical formula of Ag2O
What is the oxidation number of silver in this ionic compound?
+1
(Silver is ALWAYS +1)
500
How many moles of carbon dioxide would be present in the balanced combustion reaction of acetylene (C2H2)?
4 Moles CO2