Interactive Video: qualitative Analysis
Interactive Video
•
Professional Development
•
Professional Development
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Practice Problem
•
Hard
Donna Cadogan
FREE Resource
5 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
What did you observe when sodium hydroxide and aqueous ammonia were added to Zn2+ , Al3+ and Pb2+ dropwise then i n excess?
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2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
How is the observation of the sodium hydroxide with Ca2+ different than that of Zn2+, Al3+, and Pb2+?
3.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
Are you enjoying the video lesson?
Yes
No
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What similarity and difference do you notice when testing for Cu2+, Fe2+ and Fe3+ with NaOH?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do you observe when aqueous ammonia is added in excess to Cu2+ ions?
blue precipitate
blue solution
Blue precipitate dissolves to form dark blue solution.
blue precipitate dissolves
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