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2009 AP Chemistry化學(xué)真題系列之簡(jiǎn)答題Form B免費(fèi)下載

Category: AP課程, 國(guó)際課程, 福利干貨 Date: 2018年9月5日下午4:27

歷年AP Chemistry化學(xué)系列

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2009 AP Chemistry Free-Response Questions （Form B）Free Download

2009 AP 化學(xué)簡(jiǎn)答題 Form B部分免費(fèi)下載

考試時(shí)會(huì)提供花常用的等式與常量

以及化學(xué)元素周期表

此套Section II試卷共6題

每道大題含有不同數(shù)量的小題

共計(jì)時(shí)95分鐘

Part A計(jì)55分鐘，第1-3題各20分

Part B計(jì)40分鐘，第四題值10分，第5第6題各15分

部分真題預(yù)覽：

Section II, Part A,YOU MAY USE YOUR CALCULATOR FOR PART A可使用計(jì)算器：

2）A student performed an experiment to investigate the decomposition of sodium thiosulfate, Na₂S₂O₃ , in acidic solution, as represented by the equation above. In each trial the student mixed a different concentration of sodium thiosulfate with hydrochloric acid at constant temperature and determined the rate of disappearance of S₂O₃^2?(aq). Data from five trials are given below in the table on the left and are plotted in the graph on the right.

Identify the independent variable in the experiment.
Determine the order of the reaction with respect to S₂O₃^2-. Justify your answer by using the information above.
Determine the value of the rate constant, k, for the reaction. Include units in your answer. Show how you arrived at your answer.
In another trial the student mixed 0.10 M Na₂S₂O₃ with hydrochloric acid. Calculate the amount of time it would take for the concentration of S₂O₃^2- to drop to 0.020 M.
On the graph above, sketch the line that shows the results that would be expected if the student repeated the five trials at a temperature lower than that during the first set of trials.

2009 AP Chemistry化學(xué) FRQ微積分（Form B）完整版答案免費(fèi)下載

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2009 AP Chemistry Free-Response Questions Free Download

2009 AP 化學(xué)簡(jiǎn)答題部分免費(fèi)下載

考試時(shí)會(huì)提供花常用的等式與常量

以及化學(xué)元素周期表

此套Section II試卷共6題

每道大題含有不同數(shù)量的小題

共計(jì)時(shí)95分鐘

Part A計(jì)55分鐘，第1-3題各20分

Part B計(jì)40分鐘，第四題值10分，第5第6題各15分

下載方式請(qǐng)點(diǎn)擊下方鏈接

2009 AP Chemistry FRQ真題題目

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