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Seminole State Campell Biology Final Exam Review Questions And Answers Rated A+ New Update Assured Satisfaction
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In the case of H20, the oxygen atom covalently bonds unequally with 2 hydrogen atoms. This is why H20 is considered a _______ molecule. - polar Electrons are not evenly distributed; at any instant, they may accumulate by chance in one part of a molecule or another, causing every-changing regions...

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  • September 12, 2024
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Seminole State Campell Biology Final
Exam Review
In the case of H20, the oxygen atom covalently bonds unequally with 2 hydrogen atoms. This is why H20
is considered a _______ molecule. - polar



Electrons are not evenly distributed; at any instant, they may accumulate by chance in one part of a
molecule or another, causing every-changing regions of positive and negative charge that enable all
atoms and molecules to stick to one another, known as - Van der Waals interactions.



Which statement is true of all atoms that are anions? - The atom has more electrons than
protons.



What is negative feedback? - Accumulation of the end product slows its production.



What is an example of positive feedback? - The increasing labor contractions of childbirth before
delivery.



Which of these is reflective of the hierarchical organization of life from most to least inclusive? -
kingdom, phylum, class, order, family, genus, species



A controlled experiment is one in where - there are at least two groups, one of which does not
receive the experimental treatment.



A substance that cannot be broken down into other substances by ordinary chemical procedures is a(n) -
element.



A substance that consists of two or more substances in a fixed ratio is a - compound.



Which of the following subatomic particles always has a positive charge? - proton

, Subatomic particles that have no electrical charge and are located in the atomic nucleus are -
neutrons



Two atoms of an element that differ in number of neutrons are - isotopes.



Isotopes of an element are similar in the sense that they have the same - number of protons.



Isotopes of an element differ in the sense that they have a different - number of neutrons.



A sharing of a pair of valence electrons by two atoms is referred to as a - covalent bond.



Atoms that have an *equal* sharing of a pair of valence electrons is called a - nonpolar covalent
bond.

What is positive feedback? - An end product speeds up its own production.



Atoms that have an *unequal* sharing of a pair of valence electrons is called a - polar covalent
bond.



Energy that matter possess due to location or its structure is known as - potential energy.



When a cation and anion are attracted to each other, this is known as a(n) - ionic bond.



The attraction between a hydrogen covalently bonded to one electronegative atom and another
electronegative atom is called a - hydrogen bond



Capacity to cause change is known as - energy



Example of potential energy? - Molecule of glucose.

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