Chemistry Exam I questions and
answers
Which of the following is a property of both gases and liquids?
A. Definite shape
B. Indefinite shape
C. Definite volume
D. Indefinite volume✔✔B
In which of the following pairs of properties are both properties chemical properties?
A. Freezes at 10°C and nonflammable
B. Decomposes at 500°C and reacts with bromine
C. Poor conductor of heat and is reddish brown in color
D. Has a low density and is very hard✔✔B
When a substance undergoes a chemical change it is always true that
A. It liquefies
B. It changes from a solid to a gas
C. It is converted to a new kind of matter with a different composition
D. The temperature of the substance increases✔✔C
The description "two substances present, two phases present" is correct for
A. Heterogeneous mixtures
B. Homogeneous mixtures
C. Elements
D. Compounds✔✔A
answers
Which of the following is a property of both gases and liquids?
A. Definite shape
B. Indefinite shape
C. Definite volume
D. Indefinite volume✔✔B
In which of the following pairs of properties are both properties chemical properties?
A. Freezes at 10°C and nonflammable
B. Decomposes at 500°C and reacts with bromine
C. Poor conductor of heat and is reddish brown in color
D. Has a low density and is very hard✔✔B
When a substance undergoes a chemical change it is always true that
A. It liquefies
B. It changes from a solid to a gas
C. It is converted to a new kind of matter with a different composition
D. The temperature of the substance increases✔✔C
The description "two substances present, two phases present" is correct for
A. Heterogeneous mixtures
B. Homogeneous mixtures
C. Elements
D. Compounds✔✔A
