Chem v1/v2, AP V1/V2, HESI A2 Biology
Latest Update 2024/2025| Questions and
Answers| Grade A+
If a Hydrogen is in a compound, what would its oxidation number be? +1
What is the oxidation number of any simple ion? The same as charge of the ion
How many kilograms are in a pound? 0.453592 kg
Wh...
Chem v1/v2, AP V1/V2, HESI A2 Biology
Latest Update 2024/2025| Questions and
Answers| Grade A+
If a Hydrogen is in a compound, what would its oxidation number be? ✔✔+1
What is the oxidation number of any simple ion? ✔✔The same as charge of the ion
How many kilograms are in a pound? ✔✔0.453592 kg
What is the temperature for freezing point of water in Celsius? ✔✔0 degrees Celsius (32°F for
Fahrenheit)
What is the conversion of Celsius to Fahrenheit? ✔✔5F=9C+160 (remember 5F because you
have 5 fingers on a hand and 9C because cats have 9 lives)
What is the oxidation number of an element atom? ✔✔0
What is the freezing point of sea water in Fahrenheit? ✔✔-2C
How many amino acids are in a dipeptide? ✔✔2
If Oxygen is in a compound, what would its oxidation number be? ✔✔-2
Which of the following pH values would lemon juice likely have? ✔✔2 because the lower the
pH value, the more acidic
What is a pentose? ✔✔A 5 carbon sugar (Pent = 5) (ose = sugar)
What is the oxidation state of the Sulfur atom in Sulfuric Acid H2SO4? ✔✔6(each H is +1, each
O is -2. All charges have to add to 0. 2+S-8=0
How many neutrons does carbon 14 have? ✔✔8 ( mass# - atomics # = neutrons) 14 6= 8
How many protons does Potassium have? ✔✔19
How many amino acids are essential for human life ✔✔20 amino acids
Normal body temperature in °C? ✔✔37°C
,Normal body temperature in °F? ✔✔98.6°F
Boiling point of water in °C? ✔✔100°C
Boiling point of water in °F? ✔✔212°F
0°K is equal to°C? ✔✔-273°C
The term Amphoterie means? ✔✔A substance that can act as both a base & acid
What is Kelvin based around? ✔✔Absolute zero
A compound that is Hydrogen or proton donor, corrosive to metals, causes blue litmus paper to
become red and becomes less acidic when mixed with a base is? ✔✔Acid
Mixture of 2 or more metals are? ✔✔Alloys
pH less than 7.0 sour/tart Formulas begin with H (Hydrogen) Proton Donor ✔✔Acids:
3 types of radiation in nuclear chemistry? ✔✔Alpha, Beta & Gamma
Emission of Helium (He) ions in the nuclei Contains 2 protons & 2 neutrons. +2 Charge
radiation particle. Can Largest be stopped by piece of paper ✔✔Alpha radiation
Type of Alloy in which another metal is dissolved in Mercury (Hg)? ✔✔Amalgam
Proteins are made up of? ✔✔Amino acids
Glycogen is what kind of starch? ✔✔Animal Starch
When an atom GAINS ONE or more electrons ✔✔Anions (negative ion)
Basic building block of a molecule? ✔✔Atom (NOT CELL!!)
Atomic mass? ✔✔Average mass of a elements isotope
Atomic #: ✔✔# of protons in nucleus of an atom
A Hydrogen or proton ACCEPTOR & has hydroxide group in the makeup of the molecule
Produce -OH Bitter, slippery, conduct electricity, formulas contain -OH pH value greater than
7.0 Proton acceptor ✔✔Base
_________are Proton donors as Bases are proton acceptors ✔✔Acids
, Decomposition product of a proton or neutron High speed/energy Electrons EITHER - charged
electrons or + charged positrons Can be stopped by aluminum foil ✔✔Beta radiation:
What is Biochemistry? ✔✔Study of substances & processes occurring in living things
Fahrenheit is based off of? ✔✔Body temp
How does ↑ Surface area speed up chemical reactions? of contact reactions ✔✔By ↑ areas of
contact where chemical reactions can occur
How do catalyst accelerate a chemical reaction? ✔✔By reducing the amount of energy needed
for a reaction to occur
What does COOH symbolize? ✔✔Carboxyl group
Which of the following is not a solution type? ✔✔Catalyst
Define Catalyst. ✔✔Substance that speeds up a chemical reaction. 1
What is an atom called when it LOSES 1 or more electrons? ✔✔Cations (positive ions)
What is chemical bonding? ✔✔The joining of atoms to form new substances. 2 types: ionic &
covalent bonding
Electrical attraction between 2 oppositely charged atoms groups of atoms called ions (between
metals & nonmetals) ✔✔What is a Ionic bond?
Chemical bond that's formed when an atom transfers a electron to another atom. (steals)
✔✔Ionic bonding
Chemical bond that shares I electron pair Formed by non-metals ✔✔Single Covalent bond?
Making & breaking of chemical bonds, leading to changes in composition of matter ✔✔What
are chemical reactions?
Double Covalent bond? ✔✔When 2 electron pairs are shared
Triple Covalent bond? ✔✔When 3 electron pairs are shared
What is a combustion reaction? ✔✔A chemical reaction that occurs when a substance reacts with
Oxygen, releasing energy in the form of heat & light
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