Multiple Choice
Which of the following was added to Dalton's atomic theory as it was refined?
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2. Atoms & Elements
Atomic Theory
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Which of the following is true of a scientific theory?
A
It is an unchangeable statement that cannot be tested or revised.
B
It is a well-substantiated explanation of some aspect of the natural world that can incorporate laws, hypotheses, and facts.
C
It is a mathematical equation that describes a chemical reaction.
D
It is a guess or speculation with little supporting evidence.
Verified step by step guidance1
Understand that a scientific theory is a comprehensive explanation of some aspect of the natural world, based on a body of evidence.
Recognize that scientific theories are not unchangeable; they can be tested, revised, or refined as new evidence emerges.
Know that a scientific theory can incorporate various elements such as laws (which describe phenomena), hypotheses (testable predictions), and facts (observations).
Distinguish a scientific theory from a mathematical equation, which is a tool used to describe relationships but is not itself an explanation.
Avoid confusing a scientific theory with a guess or speculation, as theories are well-substantiated and supported by extensive evidence.
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