Ionic Solutions and Precipitates LAB

Ionic Solutions and Precipitates LAB

9th Grade

12 Qs

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Ionic Solutions and Precipitates LAB

Ionic Solutions and Precipitates LAB

Assessment

Interactive Video

Chemistry

9th Grade

Practice Problem

Medium

NGSS
MS-PS1-2, HS-PS1-4

Standards-aligned

Created by

Connie Lustig

Used 10+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of not naming the chemicals directly in the video?

To encourage students to practice chemical naming

To avoid confusion with chemical formulas

To make the video shorter

To prevent misuse of chemicals

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of plate is used for the experiment?

A shallow wool plate

A flat tray

A petri dish

A deep well plate

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why was the number of drops increased from two to 10-15?

To make the reactions more visible

Due to a mistake in the initial setup

To use up excess chemicals

To speed up the reaction process

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which chemical was added first across the rows?

Na2CO3

KI

NaOH

Na3PO4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is observed when two aqueous solutions are mixed and form a cloudy mixture?

Temperature increase

Precipitate

Evaporation

Color change

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct formula for Lead(II) nitrate used in the experiment?

PbN2O6

Pb(NO3)2

Pb2NO3

PbNO3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which solution was added down the columns last?

PbNO32

CuSO4

MgSO4

AgNO3

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