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Precipitation reactions

Precipitation reactions

Assessment

Interactive Video

Chemistry

11th Grade

Practice Problem

Easy

Created by

Tom Barclay

Used 4+ times

FREE Resource

14 questions

Show all answers

1.

SLIDE QUESTION

30 sec • Ungraded

2.

SLIDE QUESTION

30 sec • Ungraded

3.

SLIDE QUESTION

30 sec • Ungraded

4.

SLIDE QUESTION

30 sec • Ungraded

5.

DROPDOWN QUESTION

1 min • 1 pt

Use the table from page 12 of booklet to write a balanced chemical equation - put the precipitating compound last (sorry, the boxes don't do subscript)

Note: (aq) means dissolved in water and (s) means solid

​ (a)   KI(aq) + ​ (b)   Pb(NO3)2(aq) --> ​ (c)   + ​ (d)  

2 KNO3 (s)
PbI2 (aq)
2 PbI2 (s)
2
1
2 KNO3 (aq)
PbI2 (s)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The video shows water with positive and negative charges. What causes these charges?

Water is an ionic compound made up of oxygen cations and hydrogen anions

Water is a polar covalent molecule. Oxygen is more electronegative than hydrogen, pulling the shared electrons in the bond towards itself, creating partial charges.

Water rushes around the glass container and creates static electricity that gives it a charge.

The video is wrong, water is entirely uncharged and non-polar

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What error is in the text on the screen at the moment?

The charges on the ions are wrong

The French has an error (?)

sodium chloride is not a covalent molecule, it's an ionic compound

the chloride ion should be smaller than the sodium ion

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