Multiple Choice
When a balloon filled with air is placed into a freezer, which of the following best describes what will happen to the balloon?
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7. Gases
Gas Stoichiometry
Multiple Choice
Which of the following properties of gases can be directly measured in a laboratory setting?
A
Electronegativity
B
Molar mass
C
Pressure
D
Atomic number
Verified step by step guidance1
Understand the properties listed: Electronegativity, Molar mass, Pressure, and Atomic number.
Recall that electronegativity is a measure of an atom's ability to attract electrons in a chemical bond and is not directly measurable; it is derived from experimental data.
Recognize that molar mass is a calculated property based on atomic masses of elements in a compound, not something measured directly in a gas sample without additional analysis.
Know that pressure is a physical property of gases that can be directly measured using instruments like a manometer or barometer in a laboratory.
Atomic number is a fundamental property of an element representing the number of protons in the nucleus and is not measured directly in a gas sample but known from the element's identity.
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