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1 Chapter 2 Scientific measurement 2 Types of measurement l Quantitative- use numbers to describe l Qualitative- use description without numbers l 4
1 Chapter 2 Scientific measurement 2 Types of measurement l Quantitative- use numbers to describe l Qualitative- use description without numbers l 4
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1 Chapter 3 Scientific measurement 2 Types of observations l Qualitative- descriptive, but not true measurements –Hot –Large l Quantitative- describe
1 Chapter 3 Scientific measurement 2 Types of observations l Qualitative- descriptive, but not true measurements –Hot –Large l Quantitative- describe
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1 Chapter 3 Scientific measurement 2 Types of measurement l Quantitative- (quantity) use numbers to describe l Qualitative- (quality) use description
1 Chapter 3 Scientific measurement 2 Types of measurement l Quantitative- (quantity) use numbers to describe l Qualitative- (quality) use description
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PWISTA Math of Chemistry Scientific measurement Accuracy and Precision Sig Figs Metric System
PWISTA Math of Chemistry Scientific measurement Accuracy and Precision Sig Figs Metric System
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M EASURES : S IGNIFICANT FIGURES, PRECISION AND ACCURACY Dr. Chin Chu Chemistry River Dell High School
M EASURES : S IGNIFICANT FIGURES, PRECISION AND ACCURACY Dr. Chin Chu Chemistry River Dell High School
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Measurements Measurements: Definitions Measurement: –comparison between measured quantity and accepted, defined standards (SI) Quantity: –property that
Measurements Measurements: Definitions Measurement: –comparison between measured quantity and accepted, defined standards (SI) Quantity: –property that
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Types of measurement Quantitative- use numbers to describe Qualitative- use description without numbers 4 feet extra large Hot 100ºF Scientists prefer
Types of measurement Quantitative- use numbers to describe Qualitative- use description without numbers 4 feet extra large Hot 100ºF Scientists prefer
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Significant Figures Significant figures in a measurement includes all of the digits that are known, plus a last digit that is estimated. All measurements
Significant Figures Significant figures in a measurement includes all of the digits that are known, plus a last digit that is estimated. All measurements
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Unit One Review Accuracy and Precision The important things to remember about accuracy and precision: You want measurements that are both accurate and
Unit One Review Accuracy and Precision The important things to remember about accuracy and precision: You want measurements that are both accurate and
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PWISTA Math of Chemistry
PWISTA Math of Chemistry
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Estimates, Averages, and Sig Figs October 6, 2015 (2.2 in your books)
Estimates, Averages, and Sig Figs October 6, 2015 (2.2 in your books)
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Measurements
Measurements
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