Multiple Choice
A liter sample of oxygen has been purified. Which of the following characteristics will not apply to the oxygen sample?
A) Only oxygen is present in the sample.
B) The sample can be separated into two parts by physical means.
C) All molecules in the sample will be composed of two atoms, (O2) .
D) At 25 °C and 1 atm pressure, all portions of the sample will have the same properties.
Correct Answer:

Verified
Correct Answer:
Verified
Q19: Fill in the missing chemical symbol or
Q20: Indicate whether each of the following statements
Q21: For each set of elements choose the
Q22: For each set of elements choose the
Q23: Indicate whether the following descriptions of matter
Q25: The description "three substances present, two phases
Q26: Which of the following is a chemical
Q27: How many of the following pairs of
Q28: What is the difference between an extensive
Q29: The most abundant elements in the Earth's