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What is a chemical element?
What is a chemical element?
- A substance that cannot be made into a simpler form by ordinary chemical means (correct)
- A substance that contains only one type of particle and is free from any mixture
- A substance that deals with the composition and properties of various elementary forms of matter
- A substance made up of two or more elements chemically bound together in a fixed ratio
What are compounds?
What are compounds?
- Chemical substances made up of two or more elements that are chemically bound together in a fixed ratio (correct)
- Substances that contain only one type of particle and are free from any mixture
- Substances that cannot be made into a simpler form by ordinary chemical means
- Substances that deal with the composition and properties of various elementary forms of matter
What is a pure substance?
What is a pure substance?
- Substances that contain only one type of particle and are free from any mixture (correct)
- Substances made up of two or more elements chemically bound together in a fixed ratio
- Substances that deal with the composition and properties of various elementary forms of matter
- Substances that cannot be made into a simpler form by ordinary chemical means
What is the smallest unit of a chemical element?
What is the smallest unit of a chemical element?
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What do compounds create when two or more atoms link up?
What do compounds create when two or more atoms link up?
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What are the nine elements that make up almost 99% of the Earth's composition?
What are the nine elements that make up almost 99% of the Earth's composition?
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Explain how a chemical element is defined.
Explain how a chemical element is defined.
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Define compounds and provide an example.
Define compounds and provide an example.
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What are pure substances and provide examples?
What are pure substances and provide examples?
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Explain how atoms exist and their relationship to molecules.
Explain how atoms exist and their relationship to molecules.
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