Ch.1 - Introduction: Matter, Energy, and Measurement

Brown - Chemistry: The Central Science 14th Edition

Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232당신이 사용하는 게 아니라요?교과서 변경

Brown 14th Edition

Ch.1 - Introduction: Matter, Energy, and Measurement

문제 92f

1장, 문제 92f

Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (f) A hypothesis is more weakly supported by experimental evidence than a theory.

검증된 단계별 안내

Understand the definitions of 'hypothesis' and 'theory'. A hypothesis is an initial, testable statement or prediction about what might be causing a phenomenon or what might happen in a particular situation. A theory, on the other hand, is a well-substantiated explanation of some aspect of the natural world that has been repeatedly confirmed through observation and experimentation.

Recognize the relationship between a hypothesis and a theory in the scientific method. A hypothesis is typically tested through experimentation, and if consistently supported by evidence, it may contribute to the development of a theory.

Acknowledge that a theory is generally broader in scope than a hypothesis and is supported by a larger body of evidence. Theories integrate and generalize many hypotheses that have been supported by evidence, providing an overarching explanation.

Evaluate the statement based on these definitions and relationships. The statement suggests that a hypothesis is more weakly supported by experimental evidence than a theory, which aligns with the understanding that a theory is a more comprehensive and confirmed explanation.

Conclude that the statement is true. A hypothesis is indeed more weakly supported by experimental evidence than a theory, as a theory is an established framework that explains a phenomenon based on extensive and repeated experimental support.

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주요 개념

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Hypothesis vs. Theory

A hypothesis is a testable prediction about the relationship between variables, often based on limited evidence. In contrast, a theory is a well-substantiated explanation of an aspect of the natural world, supported by a body of evidence and repeated testing. The distinction lies in the level of support and validation, with theories being more robust than hypotheses.

Scientific Method

The scientific method is a systematic approach to inquiry that involves making observations, forming hypotheses, conducting experiments, and drawing conclusions. This process allows scientists to test hypotheses and develop theories based on empirical evidence. Understanding this method is crucial for evaluating the strength of scientific claims.

Evidence in Science

In scientific research, evidence refers to the data and observations collected through experiments and studies that support or refute a hypothesis or theory. The strength of a hypothesis is determined by the quality and quantity of evidence available, with a well-supported hypothesis potentially evolving into a theory if it withstands rigorous testing.

관련 실천

교과서 질문

Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (i) Compounds always contain at least two different elements.

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교과서 질문

Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (g) The number 0.0033 has more significant figures than 0.033.

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교과서 질문

Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (b) All mixtures contain at least one element and one compound.

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교과서 질문

Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (d) Elements can exist in any of the three states of matter.

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교과서 질문

You are assigned the task of separating a desired granular material with a density of 3.62 g/cm³ from an undesired granular material that has a density of 2.04 g/cm³. You want to do this by shaking the mixture in a liquid in which the heavier material will fall to the bottom and the lighter material will float. A solid will float on any liquid that is more dense. Using an Internet-based source or a handbook of chemistry, find the densities of the following substances: carbon tetrachloride, hexane, benzene, and diiodomethane. Which of these liquids will serve your purpose, assuming no chemical interaction takes place between the liquid and the solids?

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교과서 질문

Judge the following statements as true or false. If you believe a statement to be false, provide a corrected version. (c) Compounds can be decomposed into two or more other substances; elements cannot.

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