Chem v1/v2, AP V1/V2, HESI A2 Biology EXAM
Questions and Answers (Verified Answers) || LATEST
UPDATE 2025/26
If a Hydrogen is in a compound, what would its oxidation number be? -
CORRECTANSWER +1
What is the oxidation number of any simple ion? -CORRECTANSWER The same as
charge of the ion
How many kilograms are in a pound? -CORRECTANSWER 0.453592 kg
What is the temperature for freezing point of water in Celsius? -CORRECTANSWER 0
degrees Celsius (32°F for Fahrenheit)
What is the conversion of Celsius to Fahrenheit? -CORRECTANSWER 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? -CORRECTANSWER 0
What is the freezing point of sea water in Fahrenheit? -CORRECTANSWER -2C
,How many amino acids are in a dipeptide? -CORRECTANSWER 2
If Oxygen is in a compound, what would its oxidation number be? -CORRECTANSWER
-2
Which of the following pH values would lemon juice likely have? -CORRECTANSWER
2 because the lower the pH value, the more acidic
What is a pentose? -CORRECTANSWER A 5 carbon sugar (Pent = 5) (ose = sugar)
What is the oxidation state of the Sulfur atom in Sulfuric Acid H2SO4? -
CORRECTANSWER 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? -CORRECTANSWER 8 ( mass# - atomics #
= neutrons) 14 6= 8
How many protons does Potassium have? -CORRECTANSWER 19
How many amino acids are essential for human life -CORRECTANSWER 20 amino
acids
Normal body temperature in °C? -CORRECTANSWER 37°C
,Normal body temperature in °F? -CORRECTANSWER 98.6°F
Boiling point of water in °C? -CORRECTANSWER 100°C
Boiling point of water in °F? -CORRECTANSWER 212°F
0°K is equal to°C? -CORRECTANSWER -273°C
The term Amphoterie means? -CORRECTANSWER A substance that can act as both a
base & acid
What is Kelvin based around? -CORRECTANSWER 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? -
CORRECTANSWER Acid
Mixture of 2 or more metals are? -CORRECTANSWER Alloys
pH less than 7.0 sour/tart Formulas begin with H (Hydrogen) Proton Donor -
CORRECTANSWER Acids:
, 3 types of radiation in nuclear chemistry? -CORRECTANSWER 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 -CORRECTANSWER
Alpha radiation
Type of Alloy in which another metal is dissolved in Mercury (Hg)? -
CORRECTANSWER Amalgam
Proteins are made up of? -CORRECTANSWER Amino acids
Glycogen is what kind of starch? -CORRECTANSWER Animal Starch
When an atom GAINS ONE or more electrons -CORRECTANSWER Anions (negative
ion)
Basic building block of a molecule? -CORRECTANSWER Atom (NOT CELL!!)
Atomic mass? -CORRECTANSWER Average mass of a elements isotope
Atomic #: -CORRECTANSWER # of protons in nucleus of an atom
Questions and Answers (Verified Answers) || LATEST
UPDATE 2025/26
If a Hydrogen is in a compound, what would its oxidation number be? -
CORRECTANSWER +1
What is the oxidation number of any simple ion? -CORRECTANSWER The same as
charge of the ion
How many kilograms are in a pound? -CORRECTANSWER 0.453592 kg
What is the temperature for freezing point of water in Celsius? -CORRECTANSWER 0
degrees Celsius (32°F for Fahrenheit)
What is the conversion of Celsius to Fahrenheit? -CORRECTANSWER 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? -CORRECTANSWER 0
What is the freezing point of sea water in Fahrenheit? -CORRECTANSWER -2C
,How many amino acids are in a dipeptide? -CORRECTANSWER 2
If Oxygen is in a compound, what would its oxidation number be? -CORRECTANSWER
-2
Which of the following pH values would lemon juice likely have? -CORRECTANSWER
2 because the lower the pH value, the more acidic
What is a pentose? -CORRECTANSWER A 5 carbon sugar (Pent = 5) (ose = sugar)
What is the oxidation state of the Sulfur atom in Sulfuric Acid H2SO4? -
CORRECTANSWER 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? -CORRECTANSWER 8 ( mass# - atomics #
= neutrons) 14 6= 8
How many protons does Potassium have? -CORRECTANSWER 19
How many amino acids are essential for human life -CORRECTANSWER 20 amino
acids
Normal body temperature in °C? -CORRECTANSWER 37°C
,Normal body temperature in °F? -CORRECTANSWER 98.6°F
Boiling point of water in °C? -CORRECTANSWER 100°C
Boiling point of water in °F? -CORRECTANSWER 212°F
0°K is equal to°C? -CORRECTANSWER -273°C
The term Amphoterie means? -CORRECTANSWER A substance that can act as both a
base & acid
What is Kelvin based around? -CORRECTANSWER 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? -
CORRECTANSWER Acid
Mixture of 2 or more metals are? -CORRECTANSWER Alloys
pH less than 7.0 sour/tart Formulas begin with H (Hydrogen) Proton Donor -
CORRECTANSWER Acids:
, 3 types of radiation in nuclear chemistry? -CORRECTANSWER 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 -CORRECTANSWER
Alpha radiation
Type of Alloy in which another metal is dissolved in Mercury (Hg)? -
CORRECTANSWER Amalgam
Proteins are made up of? -CORRECTANSWER Amino acids
Glycogen is what kind of starch? -CORRECTANSWER Animal Starch
When an atom GAINS ONE or more electrons -CORRECTANSWER Anions (negative
ion)
Basic building block of a molecule? -CORRECTANSWER Atom (NOT CELL!!)
Atomic mass? -CORRECTANSWER Average mass of a elements isotope
Atomic #: -CORRECTANSWER # of protons in nucleus of an atom
