Orgo Chem
An alkyne with 74 hydrogen atoms has ___ carbon atoms.
38 carbon atoms.
Artificial transmutation tends to have __ particles on the left of the equation.
Two or more.
What process is used to plate keys?
Electrolysis OR Electroplating
What group of elements behave most like ideal gases?
Group 18
Based on Reference Table I, which equation represents a chemical change that is exothermic?
(1) N₂(g) + O₂(g) → 2NO(g)
(2) N₂(g) + 2O₂(g) → 2NO₂(g)
(3) 2C(s) + 3H₂(g) → C₂H₆(g)
(4) 2C(s) + 2H₂(g) → C₂H₄(g)
(3) 2C(s) + 3H₂(g) → C₂H₆(g)
A nonyl hexyl ether has how many carbon atoms?
15 carbon atoms.
Of the isotopes in table N, how many undergo positron decay?
Four.
What type of chemical reaction caused the Statue of Liberty to change color? (the statue is made of copper and is surrounded by oxygen)
A redox reaction.
A chalcogen is an element located in group 16 of the periodic table. A student claims that 2 chalcogens always form polar bonds together. Which of the following cases disproves this theory?
Se and O
O and S
S and C
O2
O2
A student is investigating the dissolving of different salts in water and observes temperature changes. Based on Reference Table I, which salt, when dissolved in water, will cause the temperature of the solution to increase?
(1) NaCl
(2) NH₄Cl
(3) KNO₃
(4) NaOH
(4) NaOH
What compound class has four functional groups?
What number does the beta particle notation have at the top left? Why?
Does the particle take up mass?
0, because it takes up some mass, but the amount is so small that it is considered negligible.
The particle DOES take up mass.
You're deciding which liquid to use as a solvent for a specific experiment in the lab. You have three options: water, ethanol, and diethyl ether. You need a solvent that will evaporate quickly at room temperature. Based on their intermolecular forces, which liquid is most likely to evaporate quickly at room temperature?
Diethyl ether.
If 5.00 liters of propane gas are burned at STP (Standard Temperature and Pressure), what volume of carbon dioxide gas will be produced at STP? (Assume the reaction goes to completion.)
15.0 L
Given the unbalanced reaction:
2510 kJ
What organic functional group has compounds ending with -al?
What organic functional group has compounds ending with -ate?
Aldehydes and Esters.
What is the half-life of U-233 in years, rounded to 3 significant figures?
1.59 × 105 years
You have a rigid container filled with an ideal gas at a certain temperature and pressure. You double the temperature of the gas while keeping the volume constant. According to the kinetic molecular theory, how will the pressure of the gas change?
A) The pressure will remain the same because the volume is constant.
B) The pressure will double because the gas molecules move faster and collide with the walls more frequently and with greater force, and WILL double because the relationship between pressure and temperature is LINEAR for an ideal gas.
C) The pressure will decrease by half because the gas molecules spread out more at higher temperatures.
D) The pressure will increase because the gas molecules move faster and collide with the walls more frequently and with greater force but will NOT double because the relationship between pressure and temperature is EXPONENTIAL for an ideal gas.
B) The pressure will double because the gas molecules move faster and collide with the walls more frequently and with greater force, and WILL double because the relationship between pressure and temperature is LINEAR for an ideal gas.
What is the most precise name of the compound C₂H₃O₂Rb?
Rubidium (III) Acetate
Rubidium (II) Acetate
Rubidium (I) Acetate
Rubidium Acetate
Ruthenium (III) Acetate
Ruthenium (II) Acetate
Ruthenium (I) Acetate
Ruthenium Acetate
Rubidium Acetate
A student mixes 25.0 mL of 1.50 M HCl(aq) with 25.0 mL of 1.50 M NaOH(aq) in a calorimeter. Assume the initial temperature of both solutions is 22.0°C. Using the information in Reference Table I, calculate the final temperature of the resulting solution. Assume the density of the solution is 1.00 g/mL and the specific heat capacity of the solution is 4.18 J/g•°C.
32.3°C
John is in a lab and conducts a combustion reaction and an esterification reaction. What are the products?
300 POINT BONUS if you get the 2 lesser-known, non-compound, non-element products.
An ester, a hydrocarbon, oxygen, water from the esterification reaction, carbon dioxide, water from the combustion reaction.
BONUS - Heat and Light
What nuclide is used to treat thyroid cancer?
What nuclide is used to date organic matter?
What may be a drawback to using the first nuclide, according to table N? Is this as much of a drawback for the second nuclide?
What nuclide in table N has the least protons?
What nuclide in table N has the smallest half-life?
What are two possible drawbacks in trying to research Fr-200?
What is Co-60 used for?
1. I-131
2. C-14
3. Small half-life
4. No.
5. H-3
6. Ca-37
7. Francium is unstable and there is a small half-life.
8. Cancer treatment or radiotherapy
A bakery uses baking soda (NaHCO3) as a leavening agent in a recipe. When heated, baking soda decomposes according to the following reaction:
If the baker uses 10.0 grams of baking soda, approximately how many grams of carbon dioxide (CO2) gas will be produced to help the baked goods rise? (Assume the reaction goes to completion)
Pick the closest answer.
A) 2.62 g
B) 5.24 g
C) 10.0 g
D) 22.0 g
A) 2.62 g
Ivan has 2 kilograms of water and uses a large-scale heating device to heat it all from 32 degrees Celsius to 43 degrees Celsius. How much heat is used for this process in kilojoules?
91.96 kJ
The 2700-point game we will be playing is....
Name that element!