A-Level Chemistry 1B Precipitation_1
Quiz
•
Chemistry
•
11th Grade
•
Hard
Aishwaria Murthy
Used 1+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a precipitation reaction?
a) A reaction that occurs between two gases
b) A reaction that occurs in solid-state only
c) A reaction that occurs in aqueous solutions where two ionic bonds combine forming insoluble salts
d) A reaction that occurs in organic solvents
2.
DRAG AND DROP QUESTION
1 min • 1 pt
One way to test for carbon dioxide gas that's (a) is that we bubble it through lime water. (b) is an aqueous solution of calcium hydroxide (c)
So here i'm breathing through this tube and you see the bubbles coming up through the (d) solution. So let's see if i can do this all in one breathe
3.
DRAG AND DROP QUESTION
1 min • 1 pt
if I can have this carbon dioxide and calcium hydroxide react to form that (a) . if you look at the reaction, you can see we have (b) ) + Ca(OH)2 (aq) → (c) +H2O that's the precipitate, and eventually that's what will change the solution to the (d) and
that's the test for (e) .
4.
DROPDOWN QUESTION
1 min • 1 pt
Lead Nitrate and Potassium Iodide Precipitate reaction; gold rain experiment involves the (a) between lead nitrate (Pb(NO3)2) and (b) , which results in the formation of a (c) . The term "gold rain" is often used to describe the appearance of the (d) , which has a (e) .
When lead nitrate and potassium iodide are mixed together, a double displacement reaction occurs. The lead ions (Pb2+) from lead nitrate react with the iodide ions (I-) from potassium iodide to form lead iodide (PbI2), which is insoluble in water and precipitates out. The balanced chemical equation for the reaction is as follows:
Pb(NO3)2 + 2KI → PbI2 + 2KNO3
The golden-yellow precipitate of lead iodide gives the appearance of "gold rain" when it forms in the solution. This reaction is often used as a demonstration in chemistry experiments to observe the formation of a colored precipitate.
5.
DRAG AND DROP QUESTION
1 min • 1 pt
Lead Nitrate and Potassium Iodide Precipitate reaction; gold rain experiment involves the reaction between lead nitrate (Pb(NO3)2) and potassium iodide (KI), which results in the formation of a precipitate. The term "gold rain" is often used to describe the appearance of the resulting precipitate, which has a golden-yellow color.
When (a) and potassium iodide are mixed together, a (b) occurs. The (c) (Pb2+) from lead nitrate react with the (d) (I-) from potassium iodide to form (e) (PbI2), which is insoluble in water and precipitates out. The balanced chemical equation for the reaction is as follows:
Pb(NO3)2 + 2KI → PbI2 + 2KNO3
The golden-yellow precipitate of lead iodide gives the appearance of "gold rain" when it forms in the solution. This reaction is often used as a demonstration in chemistry experiments to observe the formation of a colored precipitate.
6.
DRAG AND DROP QUESTION
1 min • 1 pt
Lead Nitrate and Potassium Iodide Precipitate reaction; gold rain experiment; involves the reaction between lead nitrate (Pb(NO3)2) and potassium iodide (KI), which results in the formation of a precipitate. The term "gold rain" is often used to describe the appearance of the resulting precipitate, which has a golden-yellow color.
When lead nitrate and potassium iodide are mixed together, a double displacement reaction occurs. The lead ions (Pb2+) from lead nitrate react with the iodide ions (I-) from potassium iodide to form lead iodide (PbI2), which is insoluble in water and (a) . The balanced chemical equation for the reaction is as follows:
(b) + 2KI → PbI2 + 2KNO3
The golden-yellow precipitate of (c) gives the appearance of "gold rain" when it forms in the solution. This reaction is often used as a demonstration in chemistry experiments to observe the formation of a (d) .
7.
DRAG AND DROP QUESTION
1 min • 1 pt
One way to test for (a) gas that's Co2 is we bubble it through (b) . Lime water is an (c) of calcium hydroxide (d) . So here I'm breathing through this tube and you see the (e) coming up through the calcium hydroxide solution. So let's see if I can do this all in one breath. If I can have this carbon dioxide and calcium hydroxide react to form that milky white precipitate.
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