Honors Biology Chapter 2 Test Exam
2026 Questions and Answers
Atom - Correct answer-Basic unit of matter; consists of protons, neutrons, and
electrons
Element - Correct answer-A substance that cannot be broken down into simpler
substances
Compound - Correct answer-Substance made of different elements bonded in a
certain ratio
Ion - Correct answer-An atom that has gained or lost an electron
Ionic Bond - Correct answer-Forms through the electrical force between oppositely
charged ions
Covalent Bond - Correct answer-Forms when atoms share a pair of electrons
Molecule - Correct answer-Two or more atoms held together by covalent bonds
Polar Molecule - Correct answer-Has a region with a slightly positive charge and a
slightly negative charge
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, Hydrogen Bond - Correct answer-Attraction between a slightly positive hydrogen
atom and a slightly negative atom
Cohesion - Correct answer-Attraction between molecules of the same substance
Adhesion - Correct answer-Attraction among molecules to different substances
Specific Heat - Correct answer-The heat required to raise the temperature of the
unit mass of a given substance by a given amount (usually one degree)
Solution - Correct answer-Homogeneous mixture of substances
Solvent - Correct answer-Substance that is present in the greater amount and that
dissolves another substance
Solute - Correct answer-The substance that is dissolved
Acid - Correct answer-A compound that releases a proton
Base - Correct answer-A compound that removes H+ ions
pH scale - Correct answer-Measures concentration of H+ ions in a solution
Monomer - Correct answer-Each subunit in the complete molecule
Polymer - Correct answer-Macromolecule made of many monomers bonded
together
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2026 Questions and Answers
Atom - Correct answer-Basic unit of matter; consists of protons, neutrons, and
electrons
Element - Correct answer-A substance that cannot be broken down into simpler
substances
Compound - Correct answer-Substance made of different elements bonded in a
certain ratio
Ion - Correct answer-An atom that has gained or lost an electron
Ionic Bond - Correct answer-Forms through the electrical force between oppositely
charged ions
Covalent Bond - Correct answer-Forms when atoms share a pair of electrons
Molecule - Correct answer-Two or more atoms held together by covalent bonds
Polar Molecule - Correct answer-Has a region with a slightly positive charge and a
slightly negative charge
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Hydrogen Bond - Correct answer-Attraction between a slightly positive hydrogen
atom and a slightly negative atom
Cohesion - Correct answer-Attraction between molecules of the same substance
Adhesion - Correct answer-Attraction among molecules to different substances
Specific Heat - Correct answer-The heat required to raise the temperature of the
unit mass of a given substance by a given amount (usually one degree)
Solution - Correct answer-Homogeneous mixture of substances
Solvent - Correct answer-Substance that is present in the greater amount and that
dissolves another substance
Solute - Correct answer-The substance that is dissolved
Acid - Correct answer-A compound that releases a proton
Base - Correct answer-A compound that removes H+ ions
pH scale - Correct answer-Measures concentration of H+ ions in a solution
Monomer - Correct answer-Each subunit in the complete molecule
Polymer - Correct answer-Macromolecule made of many monomers bonded
together
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