Question 1

A method of separation that employs a system with two phases of matter,a mobile phase and a stationary phase,is called

Accepted Answer

A)  filtration
B)  chromatography
C)  distillation
D)  vaporization
E)  homogenizationF) B) and C)
G) A) and E)

Question 2

The state of matter for an object that has both definite volume and definite shape is

Accepted Answer

A)  solid state
B)  liquid state
C)  gaseous state
D)  elemental state
E)  mixed stateF) A) and B)
G) B) and D)

Question 3

Consider the following three archery targets:
I.  II.  III. 
-Which of the following figure(s) represent a result having high precision?

Accepted Answer

A)  Figure I only
B)  Figure II only
C)  Figure III only
D)  Figure I and Figure II
E)  Figure II and Figure IIIF) A) and B)
G) A) and E)

Question 4

Which of the following is an example of a quantitative observation?

Accepted Answer

A)  The piece of metal is longer than the piece of wood.
B)  Solution 1 is much darker than solution 2.
C)  The liquid in beaker A is blue.
D)  The temperature of the liquid is 60°C.
E)  At least two of the above (A-
D)  are quantitative observations.F) None of the above
G) D) and E)

Question 5

Express the number 0.0810 in scientific notation.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) C) and E)
G) A) and B)

Question 6

_________ are substances with constant composition that can be broken down into elements by chemical processes.

Accepted Answer

A)  Solutions
B)  Mixtures
C)  Compounds
D)  Quarks
E)  Heterogeneous mixturesF) A) and B)
G) B) and C)

Question 7

Consider the following choices when answering questions 86-89. 
-Which best represents a solid element?

Accepted Answer

A)  option a
B)  option b
C)  option c
D)  option d
E)  option eF) A) and B)
G) B) and E)

Question 8

Consider the following choices when answering questions 86-89. 
-Which best represents a gaseous compound?

Accepted Answer

A)  option a
B)  option b
C)  option c
D)  option d
E)  option eF) All of the above
G) B) and D)

Question 9

A quantitative observation

Accepted Answer

A)  contains a number and a unit
B)  does not contain a number
C)  always makes a comparison
D)  must be obtained through experimentation
E)  is none of theseF) A) and B)
G) B) and D)

Question 10

How many significant figures are there in the number 0.0006428?

Accepted Answer

A)  7
B)  3
C)  8
D)  4
E)  0F) B) and C)
G) A) and E)

Question 11

Convert 7.9 kg to lb.(1 kg = 2.205 lb)

Accepted Answer

A)  17 lbs
B)  1.7 lbs
C)  3.6 lbs
D)  0.017 lbs
E)  17.42 lbsF) C) and D)
G) A) and E)

Question 12

Which of the following is not a unit in the SI system?

Accepted Answer

A)  ampere
B)  candela
C)  Kelvin
D)  meter
E)  calorieF) C) and E)
G) A) and B)

Question 13

Manganese makes up 1.3  ×	imes×  10-4 percent by mass of the elements found in a normal healthy body.How many grams of manganese would be found in the body of a person weighing 206 lb? (2.205 lb = 1 kg)

Accepted Answer

A)  0.59 g
B)  0.12 g
C)  12 g
D)  59 g
E)  1.2  ×	imes×  10-4 g F) A) and E)
G) A) and C)

Question 14

Express the number  in common decimal form.

Accepted Answer

A)  0.00649
B)  6.49
C)  6490
D)  0.0649
E)  0.000649F) C) and E)
G) A) and B)

Question 15

The pressure of the earth's atmosphere at sea level is  .What is the pressure when expressed in  ? (2.54 cm = 1 in. ,2.205 lb = 1 kg)

Accepted Answer

A)    
B)    
C)    
D)    
E)    F) B) and E)
G) C) and D)

Question 16

A metric unit for length is

Accepted Answer

A)  gram
B)  milliliter
C)  yard
D)  kilometer
E)  poundF) C) and D)
G) All of the above

Exam 1: Chemical Foundations

Consider the following three archery targets: I. II. III. -Which of the following figure(s) represent a result having high precision?

Correct Answer
verified

The pressure of the earth's atmosphere at sea level is .What is the pressure when expressed in ? (2.54 cm = 1 in. ,2.205 lb = 1 kg)

Correct Answer
verified

Manganese makes up 1.3 $\times$ 10^-⁴ percent by mass of the elements found in a normal healthy body.How many grams of manganese would be found in the body of a person weighing 206 lb? (2.205 lb = 1 kg)

Correct Answer
verified

Consider the following choices when answering questions 86-89. -Which best represents a solid element?

Correct Answer
verified

Convert 7.9 kg to lb.(1 kg = 2.205 lb)

Correct Answer
verified

Consider the following choices when answering questions 86-89. -Which best represents a gaseous compound?

Correct Answer
verified

A metric unit for length is

Correct Answer
verified

Express the number in common decimal form.

Correct Answer
verified

_________ are substances with constant composition that can be broken down into elements by chemical processes.

Correct Answer
verified

The state of matter for an object that has both definite volume and definite shape is

Correct Answer
verified

A quantitative observation

Correct Answer
verified

How many significant figures are there in the number 0.0006428?

Correct Answer
verified

A method of separation that employs a system with two phases of matter,a mobile phase and a stationary phase,is called

Correct Answer
verified

Which of the following is not a unit in the SI system?

Correct Answer
verified

Which of the following is an example of a quantitative observation?

Correct Answer
verified

Express the number 0.0810 in scientific notation.

Correct Answer
verified

Exam 1: Chemical Foundations

Consider the following three archery targets: I. II. III. -Which of the following figure(s) represent a result having high precision?

Correct AnswerverifiedShow Answer

The pressure of the earth's atmosphere at sea level is .What is the pressure when expressed in ? (2.54 cm = 1 in. ,2.205 lb = 1 kg)

Correct AnswerverifiedShow Answer

Manganese makes up 1.3 ×\times× 10-4 percent by mass of the elements found in a normal healthy body.How many grams of manganese would be found in the body of a person weighing 206 lb? (2.205 lb = 1 kg)

Correct AnswerverifiedShow Answer

Consider the following choices when answering questions 86-89. -Which best represents a solid element?

Correct AnswerverifiedShow Answer

Convert 7.9 kg to lb.(1 kg = 2.205 lb)

Correct AnswerverifiedShow Answer

Consider the following choices when answering questions 86-89. -Which best represents a gaseous compound?

Correct AnswerverifiedShow Answer

A metric unit for length is

Correct AnswerverifiedShow Answer

Express the number in common decimal form.

Correct AnswerverifiedShow Answer

_________ are substances with constant composition that can be broken down into elements by chemical processes.

Correct AnswerverifiedShow Answer

The state of matter for an object that has both definite volume and definite shape is

Correct AnswerverifiedShow Answer

A quantitative observation

Correct AnswerverifiedShow Answer

How many significant figures are there in the number 0.0006428?

Correct AnswerverifiedShow Answer

A method of separation that employs a system with two phases of matter,a mobile phase and a stationary phase,is called

Correct AnswerverifiedShow Answer

Which of the following is not a unit in the SI system?

Correct AnswerverifiedShow Answer

Which of the following is an example of a quantitative observation?

Correct AnswerverifiedShow Answer

Express the number 0.0810 in scientific notation.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Manganese makes up 1.3 $\times$ 10^-⁴ percent by mass of the elements found in a normal healthy body.How many grams of manganese would be found in the body of a person weighing 206 lb? (2.205 lb = 1 kg)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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