EXAM (2025 - 2026) READY
LEARNING QUESTIONS AND VERIFIED
ANSWERS A+
Alkanes .CORRECT ANSWER >>.Straight chain compounds with only
carbon and hydrogen
chemical and compounds formulas of the .....answer...............methane=
CH4, CH4
ethane= C2H6, CH3CH3 propane=
C3H8, CH3CH2CH3 butane= C4H10,
CH3CH2CH2CH3
pentane=C5H12, CH3CH2CH2CH2CH3
hexane=C6H14, CH3CH2CH2CH2CH2CH3
heptane=C7H16, CH3CH2CH2CH2CH2CH2CH3
*starting from CH4 add one carbon and two hydrogens in the chemical
formula and add one CH2 in each with CH3 on both ends
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Four ways to draw organic molecules .....answer.............chemical
formula, condensed formula, Kekule formula, and line bond formula
Functional group .CORRECT ANSWER >>.Specific arrangement of
atoms in a compound that define the chemistry of the molecule and
control the properties of the compound
What are three ways that biochemists study biological organisms?
.CORRECT ANSWER >>.among-the relationship between structure and
function of biomolecules
-chemical reactions of organisms (metabolism)
-communication with and among organisms
What is biochemistry? .CORRECT ANSWER >>.the chemistry of life
Molecular arrangements .CORRECT ANSWER >>.linear= 180 degrees
trigonal planar= 120 degrees
trigonal pyramidal= 107.5 degrees
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tetrahedral= 109.5 degrees
bent= 104.5 degrees
How many of the 90 naturally occurring elements are found in living
organisms? .CORRECT ANSWER >>.less than 30 (small nonmetal in
upper right of the table)
smaller vs larger element bonds .CORRECT ANSWER >>.smaller
elements are favored because they can form stable covalent bonds
(strong), the larger elements do not form stable covalent bonds
What elements is critical to all living things and is found in large
amounts? .....answer........Carbon
Organic vs inorganic chemistry .....answer.............organic-study of
carbon based compounds, inorganic- study of compounds typically not
containing carbon