General, Organic and
Biological Chemistry
Chapter 3 with correct
answers 2025/2026
Ions - correct answersCharged atoms (formed as a result of the loss or gain of electrons to a
neutral atom)
How are anions formed? - correct answersWhen atoms gains electrons and it become
negatively charged
What does the symbolic notation of atoms indicate? - correct answersThe number of protons
and neutrons present in that atom
Heat is kinetic energy flowing from ------> - correct answersA warmer body to a colder one
1 cal = ____ Joule - correct answers4.184 j
, What is the S.I. unit for energy? - correct answersThe Joule (j)
A calorie (c) is defined as --------> - correct answersThe amount of energy required to raise the
temp of one gram of water one by a degree Celsius.
Periodic Table:
Group 7a contains _______________. - correct answersHalogens
Neutrons Symbol - correct answers
Tracer - correct answersA minimal amount of a radioactive substance used for detection
purposes only.
What are Positron Emission Tomography (PET) used for? - correct answersTo identify functional
abnormalities in organs and tissues
What are the 2 main uses of medical radioisotopes? - correct answers1- Diagnosing diseased
states
2- Therapeutically treating diseased tissues
What is the S.I. Unit for Mass - correct answersKilogram
What is the S.I. Unit for Volume - correct answersLiter
What is the S.I. Unit for Length - correct answersmeter
Which type of radiation has an electron that is emitted from an atoms nucleus? - correct
answersBeta
Biological Chemistry
Chapter 3 with correct
answers 2025/2026
Ions - correct answersCharged atoms (formed as a result of the loss or gain of electrons to a
neutral atom)
How are anions formed? - correct answersWhen atoms gains electrons and it become
negatively charged
What does the symbolic notation of atoms indicate? - correct answersThe number of protons
and neutrons present in that atom
Heat is kinetic energy flowing from ------> - correct answersA warmer body to a colder one
1 cal = ____ Joule - correct answers4.184 j
, What is the S.I. unit for energy? - correct answersThe Joule (j)
A calorie (c) is defined as --------> - correct answersThe amount of energy required to raise the
temp of one gram of water one by a degree Celsius.
Periodic Table:
Group 7a contains _______________. - correct answersHalogens
Neutrons Symbol - correct answers
Tracer - correct answersA minimal amount of a radioactive substance used for detection
purposes only.
What are Positron Emission Tomography (PET) used for? - correct answersTo identify functional
abnormalities in organs and tissues
What are the 2 main uses of medical radioisotopes? - correct answers1- Diagnosing diseased
states
2- Therapeutically treating diseased tissues
What is the S.I. Unit for Mass - correct answersKilogram
What is the S.I. Unit for Volume - correct answersLiter
What is the S.I. Unit for Length - correct answersmeter
Which type of radiation has an electron that is emitted from an atoms nucleus? - correct
answersBeta
