Question 1

A solid substance is subjected to a number of tests and observations. Which of the following test results would not be classified as a physical property of the substance?

Accepted Answer

A)   It reacts with base to form water.
B)   Its density is 1.84 g/mL.
C)   It tastes sour.
D)   It is a white-colored solid.E) All of the above
F) A) and D)

Question 2

Indicate whether each of the following statements represents a chemical change, a physical change, or no change occurred.
-A chunk of cheddar cheese is grated. ____________________

Accepted Answer

The answer of Indicate whether each of the following statements...

Question 3

Fill in the missing chemical symbol or element name for each of the following pairs.
‪

Accepted Answer

The answer of Fill in the missing chemical symbol or...

Question 4

Indicate whether the following descriptions of matter represents an
-One substance present, one phase present, substancecannot be decomposed by chemical means. ____________________

Accepted Answer

A)   element
B)   mixture
C)   compoundD) None of the above
E) B) and C)

Question 5

Indicate whether each of the following statements represents a chemical change, a physical change, or no change occurred.
-A red piece of copper wire is added to a beakercontaining hydrochloric acid (a clear, colorless solution).After an hour a red wire is observed in a clear,colorless solution. ____________________

Accepted Answer

The answer of Indicate whether each of the following statements...

Question 6

In which pair does the symbol not match the name of the element?

Accepted Answer

A)   nitrogen - N
B)   iron - Fe
C)   strontium - Sr
D)   arsenic - ArE) A) and B)
F) A) and C)

Question 7

A pure substance has been isolated in the laboratory. Based on the two characteristics below, how can the substance be classified?
I. The species cannot be separated by physical means.
II. The species can be separated by chemical means.

Accepted Answer

A)   an element
B)   a compound
C)   a homogeneous mixture
D)   a heterogeneous mixtureE) A) and B)
F) B) and D)

Question 8

For each characterization of matter, choose the appropriate classification from the response list. Responses may be used more than once or need not be used at all.
- 1 substance present, 1 phase present, substance can be decomposed by chemical means

Accepted Answer

A)   heterogeneous mixture
B)   homogeneous mixture
C)   compound
D)   elementE) A) and D)
F) B) and D)

Question 9

For each characterization of matter, choose the appropriate classification from the response list. Responses may be used more than once or need not be used at all.
-  2 substances present, 3 phases present

Accepted Answer

A)   heterogeneous mixture
B)   homogeneous mixture
C)   compound
D)   elementE) All of the above
F) A) and B)

Question 10

Gallium has a melting point of 30 °C and a boiling point of 2403 °C. At which temperature below will gallium be a gas?

Accepted Answer

A)   -25 °C
B)   25 °C
C)   250 °C
D)   2500 °CE) A) and B)
F) All of the above

Question 11

Which of the following is a physical change?

Accepted Answer

A)   burning coal
B)   synthesis of methane from carbon and hydrogen
C)   smoking a cigarette
D)   filtering muddy waterE) A) and B)
F) None of the above

Question 12

In which of the following sequences of elements do each of the elements have a symbol which starts with a letter not the first letter of the element's English name?

Accepted Answer

A)   silver, gold, mercury
B)   copper, helium, neon
C)   cobalt, chromium, sodium
D)   argon, iron, leadE) B) and C)
F) None of the above

Question 13

Which is an example of a homogeneous mixture?

Accepted Answer

A)   chocolate chip cookie
B)   a rock collection
C)   glucose solution
D)   oil & vinegar salad dressingE) A) and D)
F) B) and C) C

Question 14

Which of the following statements about compounds and mixtures is correct?

Accepted Answer

A)   Since two or more simpler substances can be obtained from a compound, all compounds are mixtures.
B)   Compounds cannot be broken down into simpler substances by chemical means.
C)   Mixtures retain the properties of their individual components.
D)   Compounds always have properties that are identical to those of the elements used to produce them.E) B) and D)
F) B) and C)

Question 15

Choose the incorrect response concerning the substances listed below.
I. iron
II. neon
III. iodized table salt
IV. cola
V. steam

Accepted Answer

A)   III can be decomposed by chemical means.
B)   III and IV represent mixtures.
C)   I and II represent elements.
D)   I, II, III, IV and V represent pure substances.E) B) and C)
F) A) and C)

Question 16

As two liquid solutions are added together, a yellow solid forms. This change is most likely:

Accepted Answer

A)   a physical change
B)   a chemical change
C)   neither
D)   bothE) C) and D)
F) None of the above D

Question 17

Which statement is true about elements?

Accepted Answer

A)   Elements have similar symbols and names.
B)   Element names are derived either from geographical names or from the plants.
C)   The first letter of any chemical symbol is capitalized.
D)   The elements whose symbols are derived from non-English names are the recently found elements.E) None of the above
F) B) and D)

Question 18

Which of the following is a chemical property?

Accepted Answer

A)   condensation
B)   mass
C)   solubility
D)   burningE) All of the above
F) C) and D)

Question 19

Indicate whether each of the following statements represents a chemical change, a physical change, or no change occurred.
-Candle wax is burned. ____________________

Accepted Answer

The answer of Indicate whether each of the following statements...

Question 20

Which of the following is a property of both solids and liquids?

Accepted Answer

A)   definite shape
B)   indefinite shape
C)   definite volume
D)   indefinite volumeE) A) and D)
F) A) and C) C

Exam 4: Basic Concepts About Matter

A solid substance is subjected to a number of tests and observations. Which of the following test results would not be classified as a physical property of the substance?

Correct Answer
verified

Indicate whether each of the following statements represents a chemical change, a physical change, or no change occurred. -A chunk of cheddar cheese is grated. ____________________

Correct Answer
verified

Fill in the missing chemical symbol or element name for each of the following pairs. ‪

Correct Answer
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Indicate whether the following descriptions of matter represents an -One substance present, one phase present, substancecannot be decomposed by chemical means. ____________________

Correct Answer
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Correct Answer
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In which pair does the symbol not match the name of the element?

Correct Answer
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A pure substance has been isolated in the laboratory. Based on the two characteristics below, how can the substance be classified? I. The species cannot be separated by physical means. II. The species can be separated by chemical means.

Correct Answer
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For each characterization of matter, choose the appropriate classification from the response list. Responses may be used more than once or need not be used at all. - 1 substance present, 1 phase present, substance can be decomposed by chemical means

Correct Answer
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For each characterization of matter, choose the appropriate classification from the response list. Responses may be used more than once or need not be used at all. - 2 substances present, 3 phases present

Correct Answer
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Gallium has a melting point of 30 °C and a boiling point of 2403 °C. At which temperature below will gallium be a gas?

Correct Answer
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Which of the following is a physical change?

Correct Answer
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In which of the following sequences of elements do each of the elements have a symbol which starts with a letter not the first letter of the element's English name?

Correct Answer
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Which is an example of a homogeneous mixture?

Correct Answer
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C

Which of the following statements about compounds and mixtures is correct?

Correct Answer
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Choose the incorrect response concerning the substances listed below. I. iron II. neon III. iodized table salt IV. cola V. steam

Correct Answer
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As two liquid solutions are added together, a yellow solid forms. This change is most likely:

Correct Answer
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D

Which statement is true about elements?

Correct Answer
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Which of the following is a chemical property?

Correct Answer
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Indicate whether each of the following statements represents a chemical change, a physical change, or no change occurred. -Candle wax is burned. ____________________

Correct Answer
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Which of the following is a property of both solids and liquids?

Correct Answer
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C

Exam 4: Basic Concepts About Matter

A solid substance is subjected to a number of tests and observations. Which of the following test results would not be classified as a physical property of the substance?

Correct AnswerverifiedShow Answer

Indicate whether each of the following statements represents a chemical change, a physical change, or no change occurred. -A chunk of cheddar cheese is grated. ____________________

Correct AnswerverifiedShow Answer

Fill in the missing chemical symbol or element name for each of the following pairs. ‪

Correct AnswerverifiedShow Answer

Indicate whether the following descriptions of matter represents an -One substance present, one phase present, substancecannot be decomposed by chemical means. ____________________

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In which pair does the symbol not match the name of the element?

Correct AnswerverifiedShow Answer

A pure substance has been isolated in the laboratory. Based on the two characteristics below, how can the substance be classified? I. The species cannot be separated by physical means. II. The species can be separated by chemical means.

Correct AnswerverifiedShow Answer

For each characterization of matter, choose the appropriate classification from the response list. Responses may be used more than once or need not be used at all. - 1 substance present, 1 phase present, substance can be decomposed by chemical means

Correct AnswerverifiedShow Answer

For each characterization of matter, choose the appropriate classification from the response list. Responses may be used more than once or need not be used at all. - 2 substances present, 3 phases present

Correct AnswerverifiedShow Answer

Gallium has a melting point of 30 °C and a boiling point of 2403 °C. At which temperature below will gallium be a gas?

Correct AnswerverifiedShow Answer

Which of the following is a physical change?

Correct AnswerverifiedShow Answer

In which of the following sequences of elements do each of the elements have a symbol which starts with a letter not the first letter of the element's English name?

Correct AnswerverifiedShow Answer

Which is an example of a homogeneous mixture?

Correct AnswerverifiedC

Which of the following statements about compounds and mixtures is correct?

Correct AnswerverifiedShow Answer

Choose the incorrect response concerning the substances listed below. I. iron II. neon III. iodized table salt IV. cola V. steam

Correct AnswerverifiedShow Answer

As two liquid solutions are added together, a yellow solid forms. This change is most likely:

Correct AnswerverifiedD

Which statement is true about elements?

Correct AnswerverifiedShow Answer

Which of the following is a chemical property?

Correct AnswerverifiedShow Answer

Indicate whether each of the following statements represents a chemical change, a physical change, or no change occurred. -Candle wax is burned. ____________________

Correct AnswerverifiedShow Answer

Which of the following is a property of both solids and liquids?

Correct AnswerverifiedC

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C

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D

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C