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Questions and Answers
Which of the following is NOT a property used to identify solids and gases?
Which of the following is NOT a property used to identify solids and gases?
Helium is an example of a compound.
Helium is an example of a compound.
False
What distinguishes between different scents that are made of the same atoms?
What distinguishes between different scents that are made of the same atoms?
The arrangement of atoms is different.
Air is considered a __________ because it contains multiple gases.
Air is considered a __________ because it contains multiple gases.
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Match the following elements with their corresponding compounds:
Match the following elements with their corresponding compounds:
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What is the primary purpose of the gumdrop activity?
What is the primary purpose of the gumdrop activity?
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Oxygen makes up 21% of the air.
Oxygen makes up 21% of the air.
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List the two gases that are primarily found in the air and their respective percentages.
List the two gases that are primarily found in the air and their respective percentages.
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The gases that make up the air primarily include nitrogen, oxygen, and __________.
The gases that make up the air primarily include nitrogen, oxygen, and __________.
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Match the properties of solids with their respective classifications:
Match the properties of solids with their respective classifications:
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Which model represents the molecule with the chemical formula ICI?
Which model represents the molecule with the chemical formula ICI?
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The chemical formula for a substance composed of one carbon atom, two hydrogen atoms, and two oxygen atoms is CH₂O₂.
The chemical formula for a substance composed of one carbon atom, two hydrogen atoms, and two oxygen atoms is CH₂O₂.
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What is the chemical formula for ethanol?
What is the chemical formula for ethanol?
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The molecule composed of one carbon atom, two hydrogen atoms, and two oxygen atoms is known as __________.
The molecule composed of one carbon atom, two hydrogen atoms, and two oxygen atoms is known as __________.
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Match the following chemical formulas with their corresponding substances:
Match the following chemical formulas with their corresponding substances:
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