May 2024
Is the Keq of an equation affected by pressure?
No.
What does concentration refer to?
The amount of moles in a liter.
Define solvent.
The substance in which the solute dissolves.
Why are LDF temporary?
The electrons are constantly moving.
Describe the phase change of melting.
The change from solid to liquid.
True or False: The ocean is really turning acidic.
False.
Does BCAP gain or lose hydrogen atoms?
It gains hydrogen atoms.
What can solute particles be?
Atoms, molecules, or ions.
Define precipitate:
Solid product produced in a precipitation reaction.
Define volume.
The amount of physical space occupied by a gas.
What is the name of something that fixes a disturbance in an equilibrium disruption?
A buffer.
During chemical equilibrium, what is the same and what is different?
The rate is the same and the concentrations are different.
Explain what occurs when oil is placed in a cup of water.
The oil separates and moves up above the water, not mixing during the process.
Which chemical reaction represents division?
A decomposition reaction.
Describe the phase change of deposition.
The change from gas to liquid.
What are shellfish shells made out of?
CaCO3
What is the common chemical name for Vitamin C?
Absorbic acid.
Define dilute.
Relatively small amount of solute in a solvent.
Define the Law of Multiple Proportions.
Elements combined to fix whole number ratios to form different compounds.
Explain the difference between intermolecular and intramolecular forces in terms of where they occur on a molecular level.
Intramolecular forces occur within individual molecules, binding atoms together. Intermolecular forces act between separate molecules, influencing their interactions.
By how much did the ocean's pH decrease since the Industrial Revolution?
It went down by 10%.
Calculate the pOH of a 7.8*10-3M H+1 aqueous solution at 25oC.
2.11
True or False: Diluted substances are dark colored and concentrated substances are clearer and lighter.
False.
Explain how carbon dioxide is a non polar molecule.
Carbon dioxide (CO2) is non-polar because it’s linear and the two polar bonds symmetrically cancel each other out.
Describe what will happen if 2 systems have different temperatures and are in contact with each other.
Thermal energy will transfer between the two systems.