Barron's SAT II 化學(xué)

內(nèi)容概要

　　The best information on whether SAT Subject Tests are required and， if so， whichones is found in the individual college catalogs or a directory of colleges. Some col-leges specify which tests you must take， while others allow you to choose.Obviously， if you have a choice and you have done well in chemistry， you shouldpick the SAT Subject Test in Chemistry as one of your tests.

作者簡(jiǎn)介

作者：(美國(guó))馬謝塔(Mascetta.J.) 譯者：余躍

書(shū)籍目錄

入門(mén)：關(guān)于考試的基本信息摸底考試  摸底考試  答案和解析  估分  明確你需要做什么  制訂學(xué)習(xí)計(jì)劃  考前沖刺  考試之后重點(diǎn)內(nèi)容復(fù)習(xí)  1 化學(xué)入門(mén)    物質(zhì)    能量    質(zhì)能守恒    科學(xué)方法    測(cè)量和計(jì)算    本章小結(jié)    習(xí)題  2 原子結(jié)構(gòu)和元素周期表    原子的電本質(zhì)    原子光譜    波動(dòng)模型    亞層和電子構(gòu)型    過(guò)渡元素和可變的氧化數(shù)    元素周期表    與周期表相關(guān)的性質(zhì)    本章小結(jié)    習(xí)題  3 鍵    鍵的類型    分子間作用力       雙鍵和三鍵        共振結(jié)構(gòu)式        分子的幾何學(xué)——價(jià)電子互斥理論和雜化理論    σ鍵和叮π鍵    離子化合物的性質(zhì)    分子晶體和液體的性質(zhì)    本章小結(jié)    習(xí)題  4 化學(xué)式    氧化態(tài)和化學(xué)式的寫(xiě)法    關(guān)于氧化數(shù)的更多信息    化合物的命名    化學(xué)式    定比定律和倍比定律    寫(xiě)出并配平簡(jiǎn)單的方程式    在化學(xué)方程式中表示出狀態(tài)    寫(xiě)出離子方程式    本章小結(jié)    習(xí)題  5 氣體和氣體定律    一些代表性的氣體    氣體的普遍特性    氣體定律和相關(guān)問(wèn)題    本章小結(jié)    習(xí)題  6 化學(xué)計(jì)量學(xué)和摩爾概念    摩爾概念    摩爾質(zhì)量和摩爾    摩爾關(guān)系    氣體體積和摩爾質(zhì)量    ……  7 液體、固體和相變  8 化學(xué)反應(yīng)和熱化學(xué)  9 化學(xué)反應(yīng)的速率  10 化學(xué)平衡  11 酸、堿和鹽  12 氧化還原和電化學(xué)  13 一些有代表性的主族  14 碳和有機(jī)化學(xué)  15 原子核物理學(xué)  16 實(shí)驗(yàn)室測(cè)試題附錄

章節(jié)摘錄

插圖：A strategy is a goal-directed sequence of mental operations. Selecting a strategy is themost important and also the most difficult step in the problem-solving process.Although there may be several strategies that will lead to the solution of a problem,the skilled problem solver uses the most efficient strategy. The choice of the mostefficient strategy is based on knowledge and experience as well as a careful applica-tion of the clarify and explore steps of the problem-solving method. Some problemsmay require the use of a combination of strategies. The following search methods may help you to select a strategy. They do not rep-resent all of the possible ways in which this can be done. Other methods of strategyselection are related to specific content areas.  a. Trial-and-error search: Such a search either doesn't have or doesn't use informa-  tion that indicates that one path is more likely to lead to the goal than any other  path.  Trial-and-error search comes in two forms, blind and systematic. In blind search,  the searchers pick paths to explore blindly, without considering whether they  have already explored these paths. A preferable method is systematic search, in  which the searchers keep track of the paths they have already explored and do  not duplicate them. Because this method avoids multiple searches, systematic  search is usually twice as efficient as blind search.  b. Reduction method: This involves breaking the problem into a sequence of  smaller parts by setting up subgoals. Subgoals make problem solving easier  becaue they reduce the amount of search required to find the solution.  You can set up subgoals by working part way into a problem and then analyz-  ing the partial goal to be achieved. In doing this, you can drop the problem  restrictions that do not apply to the subgoal. By adding up all the subgoals, you  can solve the "abstracted" problem.  c. Working backward: When you have trouble solving a problem head-on, it is  often useful to try to work backward. Working backward involves a simple  change in representation or point of view. Your new starting point is the origi-  nal goal. Working backward can be helpful because problems are often easier to  solve in one direction than another.

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《Barron's SAT 2 化學(xué)(最新版)(英文版)(出國(guó)留學(xué)考試用書(shū))》：備考指南，考點(diǎn)透析，數(shù)百道習(xí)題邀您輪番操練，診斷測(cè)試助您認(rèn)清強(qiáng)弱項(xiàng)，全真測(cè)試題幫您考前熱身。

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