Test Bank for General, Organic, &
Biological Chemistry (2026 Edition) |
Solved Exam Pack with Questions and
Answers | 100% Pass
• A ZERO is not a significant figure if ------> -✓✓- if its at the
beginning of a decimal number
- A placeholder in a large number without a decimal point
• What happens during alpha decay? -✓✓The mass number of the
isotope produced decreases by four and the atomic number decreases by
two.
Mass number -4
Atomic number -2
• What are isotopes -✓✓They are atoms with identical atomic numbers
but with different mass numbers. ( atoms with the same number of
protons but different number of neurons.)
• Elements -✓✓Pure substances that consist of only one type of an atom.
• Gamma Decay -✓✓Will not change the mass number or the atomic
number of the product.
• Physical Change -✓✓Does not change the composition or identity of a
substance
Example: Change of state, temp changes, dissolving
• Mass -✓✓The amount of material (matter) in a substance.
• What does the nucleus of an atom contain? -✓✓Protons and neutrons
, • AMU mean ---> -✓✓Atomic Mass Unit
• Which state of matter has the lowest kinetic energy? -✓✓Solids
• What does a chemical formula tell you? -✓✓The type and number of
elements that make up that compound
• Can an element be separated into different substances? -✓✓No
• What are the first three forms of radiation and what charge is each? -
✓✓Alpha- Positively Charged
Beta- Negatively Charged
Gamma- No charge/ neutral `
• What is the boiling and freezing point of Celsius? -✓✓Boiling point =
100 degrees
Freezing Point = 0 degrees
• Radiation is a form of _________ that we get from natural and man
made sources. -✓✓Energy
• Are all atomic nuclei radioactive? -✓✓No
• Types of radiation:
What charge do positrons have and what is its symbol? -✓✓Positive
charge with a 1+ change
• What is a mixture that is mostly water called? -✓✓An aqueous solution
• Why is blood considered a mixture? -✓✓Because it contains many
different components ( white blood cells, plasma, red blood cells)
Biological Chemistry (2026 Edition) |
Solved Exam Pack with Questions and
Answers | 100% Pass
• A ZERO is not a significant figure if ------> -✓✓- if its at the
beginning of a decimal number
- A placeholder in a large number without a decimal point
• What happens during alpha decay? -✓✓The mass number of the
isotope produced decreases by four and the atomic number decreases by
two.
Mass number -4
Atomic number -2
• What are isotopes -✓✓They are atoms with identical atomic numbers
but with different mass numbers. ( atoms with the same number of
protons but different number of neurons.)
• Elements -✓✓Pure substances that consist of only one type of an atom.
• Gamma Decay -✓✓Will not change the mass number or the atomic
number of the product.
• Physical Change -✓✓Does not change the composition or identity of a
substance
Example: Change of state, temp changes, dissolving
• Mass -✓✓The amount of material (matter) in a substance.
• What does the nucleus of an atom contain? -✓✓Protons and neutrons
, • AMU mean ---> -✓✓Atomic Mass Unit
• Which state of matter has the lowest kinetic energy? -✓✓Solids
• What does a chemical formula tell you? -✓✓The type and number of
elements that make up that compound
• Can an element be separated into different substances? -✓✓No
• What are the first three forms of radiation and what charge is each? -
✓✓Alpha- Positively Charged
Beta- Negatively Charged
Gamma- No charge/ neutral `
• What is the boiling and freezing point of Celsius? -✓✓Boiling point =
100 degrees
Freezing Point = 0 degrees
• Radiation is a form of _________ that we get from natural and man
made sources. -✓✓Energy
• Are all atomic nuclei radioactive? -✓✓No
• Types of radiation:
What charge do positrons have and what is its symbol? -✓✓Positive
charge with a 1+ change
• What is a mixture that is mostly water called? -✓✓An aqueous solution
• Why is blood considered a mixture? -✓✓Because it contains many
different components ( white blood cells, plasma, red blood cells)
