Organic Chemistry
This functional group is found in alcohols and is responsible for hydrogen bonding with water.
What is the hydroxyl group?
The oxidation state of sulfur in H₂SO₄.
What is +6?
This is the enthalpy change when one mole of a substance is burned completely in oxygen under standard conditions.
What is the standard enthalpy of combustion?
This scientist’s model introduced the concept of quantized electron energy levels in the hydrogen atom.
Who is Niels Bohr?
This term describes a solution that contains the maximum amount of solute that can dissolve at a given temperature.
What is a saturated solution?
This is the IUPAC name for CH₃CH₂COOH.
What is propanoic acid?
In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, this species is reduced.
What is Cu²⁺?
If ΔH is positive, the reaction is this type.
What is endothermic?
This is the electron configuration of a neutral phosphorus atom.
What is 1s² 2s² 2p⁶ 3s² 3p³?
This is the unit commonly used to express concentration as moles of solute per liter of solution.
What is molarity?
This type of reaction occurs when ethene reacts with hydrogen in the presence of a catalyst.
What is hydrogenation?
In a voltaic cell, this electrode is where oxidation occurs.
What is the anode?
This law states that the total enthalpy change for a reaction is the same, no matter the path taken.
What is Hess’s Law?
Ionization energy generally increases across a period due to this atomic property.
What is increasing the nuclear charge?
To prepare 100.0 mL of 0.50 mol/dm³ HCl from a 2.00 mol/dm³ stock solution, this volume of stock solution is needed.
What is 25.0 mL?
These two types of isomerism are both present in 2-butanol.
What are structural isomerism and stereoisomerism?
In the reaction Cl₂ + 2Br⁻ → 2Cl⁻ + Br₂, this species acts as the oxidizing agent.
What is Cl₂?
This thermodynamic quantity generally increases when a solid turns into a gas.
What is entropy?
The atomic radius of argon is slightly larger than that of chlorine. This is due to this property.
What is electron–electron repulsion?
The solubility of most solid solutes in water increases with temperature. However, this type of solute typically shows decreased solubility as temperature increases.
What are gases?
In this nucleophilic substitution mechanism, the reaction proceeds via a one-step process involving a transition state.
What is the SN2 mechanism?
During the electrolysis of molten NaCl, this product forms at the cathode.
What is Na?
A reaction is spontaneous at all temperatures when ΔH is negative and ΔS is positive. This is the sign of ΔG.
What is negative?
Magnesium shows a large jump in ionization energy between the 2nd and 3rd electrons. This provides evidence for this structural feature of the atom.
What are energy levels?
A 1.0 molar aqueous solution of CaCl₂ causes a greater freezing point depression than NaCl. This is due to this colligative effect and property of CaCl₂ in water.
What is ion dissociation?