Chem104 Final Exam Review | Questions & Answers (100 %Score) Latest Updated
2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions
Which of the following scenarios is expected to have the smaller DQ (Desirability Quotient)? Also Explain
what could have been done to increase the DQ for your selected scenario
Scenario 1: A dental patient has one set of x-rays done each year
Scenario 2: A dentist stays in the room with each patient as x-rays are taken - Scenario 2. To increase the
DQ the dentist should leave the room or wear a lead vest
What element is Fe - iron
What element is Br - Bromine
What is the symbol for lead? - Pb
Scientific study requires which one of the following to aid in confirming a hypothesis? Choose ONE
a.) Consulting an expert
b.)Reproducible experimental evidence
c.)Random results which confirm parts of the hypothesis
d.)Observations
e.) A consensus vote of all researchers - b.) Reproducible experimental evidence
Is Table salt (NaCl) an element, compound, homogeneous solution, or heterogeneous mixture? -
Compound
Is sugar water an element, compound, homogeneous solution, or heterogeneous mixture? -
Homogeneous solution
Is cake mix an element, compound, homogeneous solution, or heterogeneous mixture? - Heterogeneous
mixture
,Place the following actions in the correct chronological order when using the Scientific Method...
a.) Gather information
b.) Propose hypothesis
c.) Identify a problem to study
d.) Perform experiments
e.) Confirm hypothesis - c,a,b,d,e
Identify each of the following as best describing Analytical, Biochemistry, Inorganic, Nuclear, Organic or
Physical Chemistry
___________ Studies ways of detecting and measuring amounts of chemicals in samples.
___________ Studies the energy of molecules and the changes molecules can undergo.
___________ Studies non-carbon based compounds.
___________ Studies chemistry in plants and animals.
___________ Studies how the center of an atom is organized. - ___________ Studies ways of detecting
and measuring amounts of chemicals in samples. (Analytical)
___________ Studies the energy of molecules and the changes molecules can undergo. (Physical)
___________ Studies non-carbon based compounds. (Inorganic)
___________ Studies chemistry in plants and animals. (Biochemistry)
___________ Studies how the center of an atom is organized. (Nuclear)
A combination of 2 or more substances that can be separated by using only a physical process is:
a.) A compound
b.) A mixture
c.) A substance
d.) A composition
e.) An Element - b.) A mixture
Which of the following is an example of a pure substance:
a.) milk
, b.) leather
c.) a piece of carpet
d.) ocean water
e.) liquid nitrogen - e.) Liquid Nitrogen
Which one is a compound?
a.) I
b.) Ni
c.) Co
d.) Rf
e.) NO - e.) NO
Identify the following as an element, compound, homogeneous solution, or heterogeneous mixture:
_________ Solid red phosphorus
_________ 2+ substances mixed at molecular level
_________ Mixture of solid and liquid that easily separates
_________ Water - _Element_ Solid red phosphorus
_Homogeneous__ 2+ substances mixed at molecular level
_Heterogeneous__ Mixture of solid and liquid that easily separates
_Compound________ Water
Symbol for Barium - Ba
Symbol for Potassium - K
Symbol for Chromium - Cr
What element is Na - Sodium
2024/2025 Comprehensive Questions A+ Graded Answers | With Expert Solutions
Which of the following scenarios is expected to have the smaller DQ (Desirability Quotient)? Also Explain
what could have been done to increase the DQ for your selected scenario
Scenario 1: A dental patient has one set of x-rays done each year
Scenario 2: A dentist stays in the room with each patient as x-rays are taken - Scenario 2. To increase the
DQ the dentist should leave the room or wear a lead vest
What element is Fe - iron
What element is Br - Bromine
What is the symbol for lead? - Pb
Scientific study requires which one of the following to aid in confirming a hypothesis? Choose ONE
a.) Consulting an expert
b.)Reproducible experimental evidence
c.)Random results which confirm parts of the hypothesis
d.)Observations
e.) A consensus vote of all researchers - b.) Reproducible experimental evidence
Is Table salt (NaCl) an element, compound, homogeneous solution, or heterogeneous mixture? -
Compound
Is sugar water an element, compound, homogeneous solution, or heterogeneous mixture? -
Homogeneous solution
Is cake mix an element, compound, homogeneous solution, or heterogeneous mixture? - Heterogeneous
mixture
,Place the following actions in the correct chronological order when using the Scientific Method...
a.) Gather information
b.) Propose hypothesis
c.) Identify a problem to study
d.) Perform experiments
e.) Confirm hypothesis - c,a,b,d,e
Identify each of the following as best describing Analytical, Biochemistry, Inorganic, Nuclear, Organic or
Physical Chemistry
___________ Studies ways of detecting and measuring amounts of chemicals in samples.
___________ Studies the energy of molecules and the changes molecules can undergo.
___________ Studies non-carbon based compounds.
___________ Studies chemistry in plants and animals.
___________ Studies how the center of an atom is organized. - ___________ Studies ways of detecting
and measuring amounts of chemicals in samples. (Analytical)
___________ Studies the energy of molecules and the changes molecules can undergo. (Physical)
___________ Studies non-carbon based compounds. (Inorganic)
___________ Studies chemistry in plants and animals. (Biochemistry)
___________ Studies how the center of an atom is organized. (Nuclear)
A combination of 2 or more substances that can be separated by using only a physical process is:
a.) A compound
b.) A mixture
c.) A substance
d.) A composition
e.) An Element - b.) A mixture
Which of the following is an example of a pure substance:
a.) milk
, b.) leather
c.) a piece of carpet
d.) ocean water
e.) liquid nitrogen - e.) Liquid Nitrogen
Which one is a compound?
a.) I
b.) Ni
c.) Co
d.) Rf
e.) NO - e.) NO
Identify the following as an element, compound, homogeneous solution, or heterogeneous mixture:
_________ Solid red phosphorus
_________ 2+ substances mixed at molecular level
_________ Mixture of solid and liquid that easily separates
_________ Water - _Element_ Solid red phosphorus
_Homogeneous__ 2+ substances mixed at molecular level
_Heterogeneous__ Mixture of solid and liquid that easily separates
_Compound________ Water
Symbol for Barium - Ba
Symbol for Potassium - K
Symbol for Chromium - Cr
What element is Na - Sodium
