1. Intro to General Chemistry

Classification of Matter

Multiple Choice
Which of the following substances is classified as a compound?
Multiple Choice
Which group is incorrectly paired with its description?
Multiple Choice
A simple random sample is also which of the following?
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?
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