Chemical and physic - Study guides, Class notes & Summaries

During Reaction 2, did the oxidation state of N change? NH3(aq) + CO2(aq) + H2O(l) → NH4+(aq) + HCO3-(aq) correct answers The part of Reaction 2 that involves nitrogen is the protonation of ammonia (NH3 + H+ →NH4+). Acid-base reactions do not involve oxidation state changes. The oxidation state of N in NH3 is -3. Each H is +1 and is balanced by the -3 of N to make a neutral compound. The oxidation state of N does not change when the N is protonated. Oxidation rules correct answers RULE...

Rf value correct answers Distance travelled by substance / distance travelled by solvent Thin lens equation correct answers 1/f = 1/O + 1/I Ohm's law correct answers V=IR Volts Index of refraction correct answers n=c/v Energy of a photon correct answers E=hf Joules Work correct answers W = force x distance Joules Ideal Gas Law Equation and assumptions correct answers PV=nRT Intermolecular forces are negligible Individual molecular volume is negligible STP conditions ...

ammonium carbonate correct answers (NH4)2CO3 Heisenberg Uncertainty Principle correct answers Cannot know both the momentum and position of an object with absolute certainty Bose-Einstein Principle correct answers Collection of atoms cooled close to absolute zero will coalesce into a single quantum state Le Chatelier's Principle correct answers reversible process, the application of stress to the system will cause the system to respond in a way that will relieve this stress Pauli Ex...

Which of the following offers the best explanation for why Line 1-2 has a steeper slope than Line 4-5? correct answers Liquid phases are less compressible than gas phases. If the conditions for Point 9 were replicated inside a glass container, what would an observer see inside? correct answers Supercritical fluid Suppose a researcher begins with 100 g of liquid and follows paths 4-5 and 6-7. Compared to Segment 4-5, the researcher would observe that Segment 6-7 has a: correct answers highe...

How do you find wavelength from velocity and frequency? correct answers Velocity/frequency What can be inferred from the products of a reaction and their relative thermodynamic stabilities? correct answers A thermodynamic mixture of isomeric products will have a relative mole ratio of products which is directly related to the relative stability of the products. Therefore, the product with a higher mole ratio will have a higher thermodynamic stability. What is the equation for the total amo...

mediating variable correct answers a variable that helps explain the relationship between two other variables Cannon-Bard Theory correct answers the theory that an emotion-arousing stimulus simultaneously triggers (1) physiological responses and (2) the subjective experience of emotion B correct answers Researchers conduct an experiment to test the Cannon-Bard theory of emotional arousal. A simulated car crash is used in which the subjects were shown video of an oncoming vehicle. Which of ...

receptor antagonist correct answers type of receptor ligand or drug that blocks or dampens a biological response by binding to and blocking a receptor rather than activating it like an agonist. 2^ n Rule correct answers gives possible stereoisomers with chiral centers. calcium oxalate precipitates correct answers when [Ca2+][C2O42-] exceeds the solubility product constant Ksp by definition electric field lines correct answers exit from positive and enter negative charges. The axon is ne...

MCAT The Princeton Review AAMC Practice Exam 1 - Chemical and Physical Foundations of Biological Systems Questions Containing 69 Terms with Answers 2024.

Briefly describe the need for controls and give an example used in this activity. - controls are needed to validate the results of the experiment. tube 5 is an example where the enzyme that tests for contaminating glucose in the starch is absent What effect did boiling and freezing have on enzyme activity? Why? - the boiling denatured the enzyme and inactivated it as predicted. the freezing has no effect on the enzyme At what pH was the amylase most active? Describe the significance of this...

AAMC Material: MCAT Chemical and Physical Foundations of Biological Systems 2024 Exam 100% Accurately Solved