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ADDITION OF AQUEOUS AMMONIA OR AMMONIUM HYDROXIDE.
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卡片总数: 4 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
卡片预览 (4 张)
#1
正面 (问题)
Pb 2+ or Al 3+ ions present.
背面 (解答)
A white precipitate was formed which was insoluble in excess.
#2
正面 (问题)
Zn 2+ ions present.
背面 (解答)
A white precipitate was formed which was soluble in excess.
#3
正面 (问题)
Cu 2+ ions present.
背面 (解答)
A blue precipitate was formed which was soluble in excess to form a deep blue solution.
#4
正面 (问题)
why is aqueous ammonia used
背面 (解答)
help in the determination of the identity of the cation present.