题干

某校化学研究性学习小组欲设计实验验证Fe、Cu的金属活动性,他们提出了以下两种方案.请你帮助他们完成有关实验项目:

方案Ⅰ:有人提出将大小相等的铁片和铜片,分别同时放入稀硫酸或稀盐酸中,观察产生气泡的快慢,据此确定它们的活动性.该原理的离子方程式为____

方案Ⅱ:有人利用Fe、Cu作电极设计成原电池,以确定它们的活动性.试在下面的方框内画出原电池装置图,标出原电池的电极材料和电解质溶液,____

并写出电极反应式.正极反应式:____;负极反应式:____

方案Ⅲ:结合你所学的知识,帮助他们再设计一个验证Fe、Cu活动性的简单实验方案与方案Ⅰ、Ⅱ不能雷同:____,用离子方程式表示其反应原理:____

上一题 下一题 0.0难度 选择题 更新时间:2014-12-29 07:13:41

答案(点此获取答案解析)

Fe+2H+\u2550Fe2++H2\u2191,,2H++2e\ufe63=H2\u2191,Fe=Fe2++2e\ufe63,\u53d6\u65e0\u9508\u94c1\u68d2\u63d2\u5165CuSO4

同类题4

根据短文内容的理解,选择正确答案。

    Summer School for Effective Leadership 2014

    The Hong Kong Federation of Youth Groups (HKFYG) partners with 2 world-class universities, The University of Hong Kong (HKU) and The Hong Kong University of Science and Technology (HKUST) to offer you the best international summer schools in town! This year the Summer School for Effective Leadership (SSEL) is divided into the HKU Chapter—An Overture to Global Leadership, and HKUST Chapter—The Art of Public Speaking. Please find out more from the introduction below:

    HKU Chapter—An Overture to Global Leadership

    An Overture to Global Leadership, now in its seventh year, is cooperation between the Hong Kong Federation of Youth Groups and the University of Hong Kong with the aims:

    1 To nurture youth leaders with solid fundamental knowledge and intensive leadership skills;

    2 To strengthen their critical thinking skills, interpersonal skills and problem solving abilities;

    3 To reinforce their willingness to serve the community;

    4 To further develop global perspective and promote intercultural awareness amongst participants.

    Date

    Between 18 July 2014 (Friday) and 26 July 2014 (Saturday).

    Full attendance is mandatory for the 9-day-8-night programme. Shared-room accommodation in the University dormitory is required.

    Application Deadline

    Non-residents of Hong Kong: 6:00 p.m., Friday, 16 May 2014 (Hong Kong Time)

    Non-residents of Hong Kong may need to apply for a student visa, please visit the website: http://121.hkfyg.org.hk/ssel/hku/overview.html for further details.

    For application, please visit: http://121.hkfyg.org.hk/ssel/hku/application.php

    HKUST Chapter—The Art of Public Speaking

    The Art of Public Speaking is a new collaboration between the Hong Kong Federation of Youth Groups, and the Hong Kong University of Science and Technology with the aims:

    1 To enhance the leadership skills and public speaking skills of participants;

    2 To allow youth leaders and speakers to learn from one another, and encourage cultural exchanges;

    3 To demonstrate how public speaking skills can be used by leaders to communicate to the public;

    4 To allow outstanding student leaders to serve and understand the local community.

    Date

    Between 14 July 2014 (Monday) and 19 July 2014 (Saturday)

    Full attendance is mandatory for the 6-day-5-night programme. Shared-room accommodation in the University dormitory is required.

    Application Deadline

    Non-residents of Hong Kong: 6:00p.m., Friday, 9 May 2014 (Hong Kong Time).

    Non-residents of Hong Kong may need to apply for a student visa, please visit the website: http://l21.hkfyg.org.hk/ssel/hkust/overview.html for further details.

    For application, please visit: http://l21.hkfyg.org.hk/ssel/hkust/application.php