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CAMPBELL BIOLOGY 12TH EDITION CHAPTERS 2-5 EXAM GUIDE QUESTIONS AND ANSWERS $13.49   Add to cart

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CAMPBELL BIOLOGY 12TH EDITION CHAPTERS 2-5 EXAM GUIDE QUESTIONS AND ANSWERS

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CAMPBELL BIOLOGY 12TH EDITION CHAPTERS 2-5 EXAM GUIDE QUESTIONS AND ANSWERS

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  • September 15, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Campbell biology
  • Campbell biology
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CAMPBELL BIOLOGY 12TH EDITION
CHAPTERS 2-5 EXAM GUIDE
QUESTIONS AND ANSWERS
Element - Answer-A substance that cannot be broken down to other substances by
chemical reactions; 92 elements

Compound - Answer-A substance consisting of two or more different elements
combined in a fixed ratio

Elements in the human body - Answer-oxygen, carbon, hydrogen, nitrogen, calcium,
phosphorus, potassium, sulfur, sodium, chlorine, magnesium

Essential Element - Answer-elements that an organism needs to live a healthy life and
reproduce

Trace Elements - Answer-required by an organism in only minute quantities

Energy - Answer-the capacity to cause change

potential energy - Answer-the energy that matter possesses because of its location or
structure

chemical bonds - Answer-the attractive forces that hold atoms together

covalent bond - Answer-the sharing of a pair of valence electrons by two atoms

single bond - Answer-a pair of shared electrons

double bond - Answer-A chemical bond formed when atoms share two pairs of
electrons

valence - Answer-The bonding capacity of a given atom; usually equals the number of
unpaired electrons required to complete the atom's outermost (valence) shell.

Electronegativity - Answer-The attraction of a given atom for the electrons of a covalent
bond; the more an atom has, the stronger it pulls shared electrons toward itself

non polar covalent bond - Answer-equal sharing of electrons

polar covalent bond - Answer-A covalent bond in which electrons are not shared equally

ions - Answer-positively and negatively charged atoms

, ionic bond - Answer-the attraction between oppositely charged ions

ionic compounds/salts - Answer-compounds that contain ionic bonds

hydrogen bond - Answer-noncovalent attraction between a hydrogen and an
electronegative atom

Van der Waals interactions - Answer-individually weak and occur only when atoms and
molecules are very close together

reactants - Answer-A starting material in a chemical reaction

products - Answer-The elements or compounds produced by a chemical reaction.

chemical equalibrium - Answer-When reactants are forming products at the exact same
rate products are forming reactants.

molecular shape - Answer-The geometric shape formed by atoms bonded to the central
atom in a molecule

molecular function - Answer-affects the structure and function of cells to determine the
trait

polar covalent bonds - Answer-A covalent bond between atoms that differ in
electronegativity. The shared electrons are pulled closer to the more electronegative
atom, making it slightly negative and the other atom slightly positive.

polar molecule - Answer-molecule with an unequal distribution of charge, resulting in the
molecule having a positive end and a negative end

Four emergent properties of water - Answer-1. Cohesive behavior
2. Ability to moderate temperature
3. Expansion upon freezing
4. Versatility as a solvent

cohesion - Answer-Attraction between molecules of the same substance (water to
water)

surface tension - Answer-A measure of how difficult it is to stretch or break the surface
of a liquid

Adhension - Answer-attraction between molecules of different substances

kinetic energy - Answer-energy of motion

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