1. Intro to General Chemistry

Classification of Matter

Multiple Choice
Which group is incorrectly paired with its description?
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Multiple Choice
A simple random sample is also which of the following?
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Open Question
In the following images, the white spheres represent hydrogen atoms and the red spheres represent oxygen atoms. classify each sample as an element, a compound, or a mixture.
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Multiple Choice
The drawing shows two water molecules. Which statement is correct?
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Multiple Choice
Which of the following is an example of a compound?
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Open Question
A substance made up of two or more elements that have been chemically combined is called
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Multiple Choice
Consider the following data obtained by decomposing samples of carbon dioxide, CO₂, into its component elements.
Mass of CO₂ and Components
Sample Mass CO₂ Mass C Mass O₂
1 44.00 g 12.00 g 32.00 g
2 22.00 g 6.00 g 16.00 g
3 88.00 g 24.00 g 64.00 g

Which of the following statements is consistent with this data?
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Open Question
Unlike an element, a(n) ________ may be separated through a physical process like filtration.
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Open Question
One particular type of atom and it cannot be broken down into a simpler substance
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Open Question
Based on the given information, what is the best classification for this sample of crude oil?
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Open Question
A substance made of atoms of two or more different elements joined by chemical bonds.
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Multiple Choice
Choose the homogeneous mixture from the list below.
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Open Question
A homogenous mixture of two or more substances is known as a(n)
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Sample	Mass CO₂	Mass C	Mass O₂
1	44.00 g	12.00 g	32.00 g
2	22.00 g	6.00 g	16.00 g
3	88.00 g	24.00 g	64.00 g