1.1 Chemistry: The Central Science

More documents

Recommendations

Info

1.11 Rounding Off Numbers Calculators often display more digits than are justified by the precision of the data. Rounding off—A procedure used for deleting nonsignificant figures • Rule 1: In carrying out multiplication or division, the answer cannot have more significant figures than the original numbers. • Rule 2: In carrying out addition or subtraction, the answer cannot have more digits after the decimal point than the original numbers.
1.12 Problem Solving: Unit Conversions and Estimating Answers The simplest way to carry out calculations involving different units is to use the factorlabel method. • The factor-label method is a problem-solving procedure in which equations are set up so that unwanted units cancel and only the desired units remain. • The conversion factor is an expression of the numerical relationship between two units.
Page 1 and 2: 1.1 Chemistry: The Central Science
Page 3 and 4: 1.2 States of Matter Many substance
Page 5 and 6: 1.3 Classification of Matter Compon
Page 7 and 8: 1.4 Chemical Elements and Symbols
Page 9 and 10: 1.4 Chemical Elements and Symbols
Page 11 and 12: 1.6 Chemical Reactions: An Example
Page 13 and 14: 1.7 Physical Quantities Scientists
Page 15 and 16: 1.7 Physical Quantities
Page 17 and 18: 1.8 Measuring Mass, Length, and Vol
Page 19 and 20: 1.9 Measurement and Significant Fig
Page 21 and 22: 1.10 Scientific Notation • Scient
Page 23: 1.10 Scientific Notation • To con
Page 27 and 28: 1.12 Problem Solving: Unit Conversi
Page 29 and 30: 1.13 Temperature, Heat, and Energy
Page 31 and 32: 1.13 Temperature, Heat, and Energy

1.1 Chemistry: The Central Science

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?