对于电池的符号为:,则此电池反应的产物为 ( )。A. Fe3+,Sn2+ B. Sn4+,Fe2+ C. Sn4+, Fe3+ D. Sn2+, ...

作者: tihaiku 人气: - 评论: 0
问题 对于电池的符号为:,则此电池反应的产物为 ( )。
选项 A. Fe3+,Sn2+ B. Sn4+,Fe2+ C. Sn4+, Fe3+ D. Sn2+, Fe2+
答案 B
解析 提示:负极的反应为Sn2+-2e=Sn4+,正极的反应为Fe3++e=Fe2+,因此反应产物为 Sn4+和 Fe2+。

猜你喜欢

发表评论
更多 网友评论0 条评论)
暂无评论
错误啦!

错误信息

  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
    <?php echo 'KongPHP, Road to Jane.'; ?>