Page 1 of 73 | © copyright 2024/2025 | Grade A+
Bio 151 VCU test #1 Questions & Verified
Answers 2024-2025 | 100% Pass Rate
Guaranteed | Latest Updated Version
what is the charge of an atoms core?
Ans: positive
atomic mass
Ans: number of protons and neutrons in an atom
orbital
Ans: the space where an electron orbits an atom's nucleus
Isotope
Ans: atoms of an element that have a different number of neutrons
Master01 | Dec, 2024/2025 | Latest update
,Page 2 of 73 | © copyright 2024/2025 | Grade A+
Ionic bond
Ans: atoms held together by electrostatic attraction. Attraction of oposite ions
cation
Ans: atoms that lose an electron
anion GAIN=AIN
Ans: atom that gained an electron
covalent bonding
Ans: chemical bond formed between 2 atoms by the sharing of an electron
very strong
hydrogen bonding
Ans: covalent bond between 2 hydrogen atoms
Master01 | Dec, 2024/2025 | Latest update
,Page 3 of 73 | © copyright 2024/2025 | Grade A+
chemical equillibrium
Ans: most chemical reactions are reversible
equilibrium
Ans: concentrations of reactants and products are no longer changing
cohesion COFRIEND=LIKE
Ans: the attraction of like molecules
adhesion
Ans: the attraction of dissimilar molecules
acid
Ans: chemical compounds that donates H+ ions to solutions
below 7 on the scale
base
Master01 | Dec, 2024/2025 | Latest update
, Page 4 of 73 | © copyright 2024/2025 | Grade A+
Ans: compound that accepts H+ ions and removes them from a solution
above 7
Isomers
Ans: compounds with the same molecular formula but different structures
Hydroxyl group R-OH
Ans: containing an oxygen atom connected by a covalent bond to a hydrogen atom
found on amino acids and nucleic acids
typical of alcohols and carbohydrates
Carboxyl group -COOH
Ans: found on organic acids like amino acids and nucleic acids.
Polar group due to polar covalency between O and H and O and C
readily ionizes in water to release H-
Master01 | Dec, 2024/2025 | Latest update
Bio 151 VCU test #1 Questions & Verified
Answers 2024-2025 | 100% Pass Rate
Guaranteed | Latest Updated Version
what is the charge of an atoms core?
Ans: positive
atomic mass
Ans: number of protons and neutrons in an atom
orbital
Ans: the space where an electron orbits an atom's nucleus
Isotope
Ans: atoms of an element that have a different number of neutrons
Master01 | Dec, 2024/2025 | Latest update
,Page 2 of 73 | © copyright 2024/2025 | Grade A+
Ionic bond
Ans: atoms held together by electrostatic attraction. Attraction of oposite ions
cation
Ans: atoms that lose an electron
anion GAIN=AIN
Ans: atom that gained an electron
covalent bonding
Ans: chemical bond formed between 2 atoms by the sharing of an electron
very strong
hydrogen bonding
Ans: covalent bond between 2 hydrogen atoms
Master01 | Dec, 2024/2025 | Latest update
,Page 3 of 73 | © copyright 2024/2025 | Grade A+
chemical equillibrium
Ans: most chemical reactions are reversible
equilibrium
Ans: concentrations of reactants and products are no longer changing
cohesion COFRIEND=LIKE
Ans: the attraction of like molecules
adhesion
Ans: the attraction of dissimilar molecules
acid
Ans: chemical compounds that donates H+ ions to solutions
below 7 on the scale
base
Master01 | Dec, 2024/2025 | Latest update
, Page 4 of 73 | © copyright 2024/2025 | Grade A+
Ans: compound that accepts H+ ions and removes them from a solution
above 7
Isomers
Ans: compounds with the same molecular formula but different structures
Hydroxyl group R-OH
Ans: containing an oxygen atom connected by a covalent bond to a hydrogen atom
found on amino acids and nucleic acids
typical of alcohols and carbohydrates
Carboxyl group -COOH
Ans: found on organic acids like amino acids and nucleic acids.
Polar group due to polar covalency between O and H and O and C
readily ionizes in water to release H-
Master01 | Dec, 2024/2025 | Latest update
