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Quiz von nicole200104, aktualisiert more than 1 year ago
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Erstellt von nicole200104
vor fast 9 Jahre
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Frage 1
Frage
Which statement most resembles a scientific theory?
Antworten
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When the pressure on a sample of oxygen gas is increased 10%, the volume of the gas decreases by 10%.
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The volume of a gas is inversely proportional to its pressure.
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A gas is composed of small particles in constant motion.
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A gas sample has a mass of 15.8g and a volume of 10.5 L.
Frage 2
Frage
Where can you find chemicals?
Antworten
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In a hardware store
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In a chemical stockroom
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All around you and even inside of you
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All of the above
Frage 3
Frage
What statement best defines chemistry?
Antworten
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The science that studies solvents, drugs, and insecticides
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The science that studies the connections between the properties of matter and the particles that compose that matter
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The science that studies air and water pollution
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The science that seeks to understand processes that occur only in chemical laboratories
Frage 4
Frage
According to the scientific method, what is a law?
Antworten
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A short statement that summarizes a large number of observations
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A fact that can never be refuted
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A model that gives insight into how nature is
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An initial guess with explanatory power
Frage 5
Frage
Which statement is an example of an observation?
Antworten
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In a chemical reaction, matter is conserved.
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All matter is made of atoms.
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When a given sample of gasoline is burned in a closed container, the mass of the container and its contents does not change.
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Atoms bond to one another by sharing electrons.
Frage 6
Frage
Which characteristic is necessary for success in understanding chemistry?
Antworten
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Curiosity
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Calculation
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Commitment
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All of the above
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