化学：中心科学（英文版 原书第10版） 教学课件 ppt 作者 （美）厄巴那 BROWMG_G01-G12PR.pdfVIP

BROWMG_G01-G12PR 1/14/05 10:02 Page G-1 Glossary absorption spectrum The amount of light ab- alkaline earth metals Members of group 2A in ment of carbon atoms linked by both s and de- sorbed by a sample as a function of wavelength. the periodic table. (Section 7.7) localized p bonds. (Section 25.2) (Section 24.5) alkanes Compounds of carbon and hydrogen Arrhenius equation An equation that relates accuracy A measure of how closely individual containing only carbon–carbon single bonds. the rate constant for a reaction to the frequency measurements agree with the correct value. (Sections 2.9 and 25.2) factor, A, the activation energy, Ea , and the tem- (Section 1.5) -E RT alkenes Hydrocarbons containing one or perature, T: k = Ae a . In its logarithmic acid A substance that is able to donate a H+ more carbon–carbon double bonds. (Section 25.2) form it is written ln k = - EaRT + ln A. ion (a proton) and hence increases the concen- alkyl group A group that is formed by (Section 14.5) tration of H+ (aq) when it dissolves in water. removing a hydrogen atom from an alkane. atmosphere (atm) A unit of pressure equal to (Section 4.3)