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Questions and Answers
Which of the following is NOT a characteristic of a chemical substance?
Which of the following is NOT a characteristic of a chemical substance?
- Homogeneity throughout the substance
- Uniform distribution of chemical composition
- Definite chemical composition
- Ability to be broken down into different substances (correct)
Which elements are most abundant in cells?
Which elements are most abundant in cells?
- Carbon, oxygen, and hydrogen
- Hydrogen, nitrogen, and phosphorous
- Carbon, nitrogen, and oxygen (correct)
- Oxygen, phosphorous, and sulfur
What are trace elements?
What are trace elements?
- Elements that are required in small amounts by living things (correct)
- Elements that are required in equal amounts by living things
- Elements that are required in large amounts by living things
- Elements that are not required by living things
What is the smallest particle of an element called?
What is the smallest particle of an element called?
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What does the nucleus of an atom contain?
What does the nucleus of an atom contain?
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Which of the following best describes a chemical substance?
Which of the following best describes a chemical substance?
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Which of the following is an example of a trace element?
Which of the following is an example of a trace element?
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Which elements are most abundant in cells?
Which elements are most abundant in cells?
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What is the smallest particle of an element called?
What is the smallest particle of an element called?
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What does the nucleus of an atom contain?
What does the nucleus of an atom contain?
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