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Chemistry Review for Final

Chemistry Review for Final - Chapter1:Introduction...

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Chapter 1: Introduction Hypotheses may evolve into theories, which are unifying principles that explain a body of facts and/or those laws that are based on them. Chemical properties can only be observed if a chemical change is carried out. An extensive property depends on the amount of matter that is being considered. An intensive property does not depend on the amount of matter being considered. SI stands for International System of Units. Temperature: Kelvin scale To convert into Kelvin scale, ? K = (°C + 273.15 °C) To convert Fahrenheit to Celsius, use ?°C = (°F – 32) * 5 °C 9 °F Mass is the measure of the quantity of matter in an object while weight is the force that gravity exerts on an object. Density = Mass Volume When using scientific notation, subtract exponents that are being divided, and add exponents that are being multiplied. For sig figs, any zeros before numbers are not significant, but after they are. When using scientific notation, the amount of zeros after the decimal + dictates the number of sig figs. For example, 7.000 x 10
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