Kinetics and Equilibrium
Organic Chemistry
Redox
Acids, Bases, and Salts
Nuclear
100
Identify one factor, other than the concentration of the reactants, that would affect the rate of this reaction.
What is temperature, adding catalyst, smaller pieces
100
A molecule of an organic compound contains at least one atom of which element?
What is carbon
100
Which metals are less active than H2?
What are Cu, Ag, and Au
100
In liquid water, an equilibrium exists between H2O(ℓ) molecules, H+(aq) ions, and OH−(aq) ions. A person experiencing acid indigestion after drinking tomato juice can ingest milk of magnesia to reduce the acidity of the stomach contents. Tomato juice has a pH value of 4. Milk of magnesia, a mixture of magnesium hydroxide and water, has a pH value of 10. Compare the hydrogen ion concentration in tomato juice to the hydrogen ion concentration in milk of magnesia.
What is tomato juice has a higher hydrogen ion concentration than milk of magnesia (1,000,000 x's)
100
What is the decay mode of technetium-99?
What is beta decay
200
A chemical reaction between iron atoms and oxygen molecules can only occur when...
What is there are effective collisions
200
A carbon-carbon triple bond is found in a molecule belonging to which homologous series?
What is alkyne
200
Describe the flow of electrons and ions in a voltaic cell.
What is electrons flow through the wire from the anode to the cathode, then negative ions flow through the salt bridge to complete the circuit
200
In liquid water, an equilibrium exists between H2O(ℓ) molecules, H+(aq) ions, and OH−(aq) ions. A person experiencing acid indigestion after drinking tomato juice can ingest milk of magnesia to reduce the acidity of the stomach contents. Tomato juice has a pH value of 4. Milk of magnesia, a mixture of magnesium hydroxide and water, has a pH value of 10. Identify the negative ion found in milk of magnesia.
What is -OH or hydroxide
200
Write the nuclear equation for the decay of radium-226
What is alpha decay (natural transmutation)
300
Given the equation representing a phase change at equilibrium: H2O(s) <--> H2O(ℓ) Which statement describes this equilibrium? (1) The H2O(s) melts faster than the H2O(ℓ) freezes. (2) The H2O(ℓ) freezes faster than the H2O(s) melts. (3) The mass of H2O(s) must equal the mass of H2O(ℓ). (4) The mass of H2O(ℓ) and the mass of H2O(s) each remain constant.
What is (4)
300
Glycine, NH2CH2COOH, is an organic compound found in proteins. Acetamide, CH3CONH2, is an organic compound that is an excellent solvent. Both glycine and acetamide consist of the same four elements, but the compounds have different functional groups. Identify one functional group in a glycine molecule
What is amine or organic acid
300
Describe thr energy change in an operating electrolytic cell
What is from electrical to chemical energy
300
In liquid water, an equilibrium exists between H2O(ℓ) molecules, H+(aq) ions, and OH−(aq) ions. A person experiencing acid indigestion after drinking tomato juice can ingest milk of magnesia to reduce the acidity of the stomach contents. Tomato juice has a pH value of 4. Milk of magnesia, a mixture of magnesium hydroxide and water, has a pH value of 10. What is the color of thymol blue indicator when placed in a sample of milk of magnesia?
What is blue
300
Which nuclear emission has no charge and no mass?
What is gamma radiation
400
In a chemical reaction, the difference between the potential energy of the products and the potential energy of the reactants is equal to the
What is heat of reaction
400
Glycine, NH2CH2COOH, is an organic compound found in proteins. Acetamide, CH3CONH2, is an organic compound that is an excellent solvent. Both glycine and acetamide consist of the same four elements, but the compounds have different functional groups. Draw a structural formula for acetamide
400
Write the half-reaction equation that represents the reduction of an iron(II) ion
What is Fe+2 + 2e --> Fe
400
Which table would you look at to determine if a compound when dissolved in water is an Arrhenius acid?
What is Table K
400
Which reaction is accompanied by the release of the greatest amount of energy? (1) combustion of 10. g of propane (2) electrolysis of 10. g of water (3) nuclear fission of 10. g of uranium (4) oxidation of 10. g of iron
What is (3)
500
Given the equation representing a system at equilibrium: N2(g) + 3H2(g) <---> 2NH3(g) + energy Which changes occur when the temperature of this system is decreased? (1) The concentration of H2(g) increases and the concentration of N2(g) increases. (2) The concentration of H2(g) decreases and the concentration of N2(g) increases. (3) The concentration of H2(g) decreases and the concentration of NH3(g) decreases. (4) The concentration of H2(g) decreases and the concentration of NH3(g) increases.
What is shifts to the right and H2 and N2 decrease
500
Which nuclides are used to date the remains of a once-living organism?
What is C-14 to C-12
500
Given the balanced ionic equation representing the reaction in an operating voltaic cell: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) The flow of electrons through the external circuit in this cell is from the
What is Zn anode to the Cu cathode
500
An acid can be defined as a proton...
What is donor
500
Determine the half-life of krypton-92 if only 6.0 milligrams of an original 96.0-milligram sample remains unchanged after 7.36 seconds.
What is 1.84 seconds
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