题干

白铜(Cu、Ni合金)因为光泽好、耐腐蚀、容易加工等优点,常代替银做饰品。下图所示是某实验室分离废弃白铜饰品成分的流程(部分反应产物在图中已略去,Ni在化合物中显+2价,溶液B中只有一种溶质)。

分析该流程,回答下列问题:

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Teens Spring Events at San Francisco Public Library

GREAT TEEN BOOK SWAP

Sunday,March 19,2017-2:30 pm to 5:30 pm

FREE hook!Just leave us a review.

    Here's how it works: Every Thursday,the librarian will bring out several books and allow teens the chance to look through them for one that you'd like to keep.You will,in turn,swap us a review of the book by the end of the month.

For ages 12-18.

For more information,contact Dorcas at dorcas.wong@sfpl.org.

THE MIX BOOK CLUB!

Sunday,March 19,2017-4:00 pm to 5:00 pm

    Teens aged 13-18 are welcome to The Mix at SFPL Book Club!We read a different book each month that you help choose.This month we're reading The Sun is Also A Star,by Nicola Yoon.New members and drop-ins are always welcome!

For more information,please e-mail catherine.cormier@sfpl.org or call (415)557-4404.

THE PORTRAIT OF A LADY BY HENRY JAMES

Sunday,March 19,2017-6:30 pm to 8:30 pm

    Please join Chinatown's World Literature Book Club for an enjoyable discussion of The Portrait of a Lady by Henry James.This famous novel follows the young,free-spirited heiress,Isabel Archer,as she travels from New York to Europe.

CARTOONING & GRAPHIC NOVEL WORKSHOP

Saturday,March 25,2017-2:00 pm to 4:00 pm

    Join teaching artist and cartoonist Aaron Southerland for a cartooning and graphic novel workshop.Students will learn to create their very own cartoon and comic characters through advanced drawing techniques.

    This is a Reading,Writing & Poetry program from SFPL.We love reading/sharing/creating words.