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Chemistry Lab: Conservation Of Mass

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Matter cannot be created or destroyed by a chemical change. During a chemical change (reaction), the atoms of one or more substances (reactants) simply undergo some "rearrangements". The result of these rearrangements is the formation of new, different substances (products). All of the original atoms are still present. The total mass of the reactants before a chemical reaction will equal the total mass of the products after the chemical reaction.

Please Note: This product is included in a bundled unit plan of 11 products on Matter and Change. You can view the entire unit by Clicking here: Matter and Change Unit Bundle

Please Note: This lab is also sold in a bundled product contain 14 "must-do" physical science and chemistry labs. View the bundled product here.

PURPOSE
To determine experimentally whether mass is conserved in a particular set of chemical reactions.

MATERIALS AND EQUIPMENT
Beral pipets, Plastic bottles with caps, 10 mL graduated cylinder, Balances, White vinegar, Phenolphthalein, Silver nitrate, Sodium chloride solution, Alka seltzer tablets, Sodium hydroxide (1M solution)

Your download will include handouts that are ready to be copied and passed out to your students. Handouts include: Title, Purpose, Introduction, Materials, Safety Precautions, Procedure, Analysis Questions, Student Data Pages, Answers to all Questions, and Teacher Preparation Notes.

You will receive both an editable Word document and a pdf of this lab.

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Amy Brown - Science Stuff

K-12 Subject:

Science, Chemistry, Physical Science

Grade Level(s):

Eighth, Ninth, Tenth, Eleventh, Twelfth

Teaching Duration:

1 hour

Type of Resource:

Activities, Laboratory

Answer Key:

N/A

# of Pages/Slides:

SAMPLE IMAGES OF THIS ITEM

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FILE DETAILS

Compressed Zip File Be sure that you have an application to open this file type before downloading and/or purchasing.

3008.6 KB | 6 Pages

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FEEDBACK

joshi123

It would have been nice, if the last experiment was to be designed by students themselves. I am going to modify it a little bit and see how it works. THank you so much.

November 8, 2009

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