"Conservation of Mass in Chemical Reactions" Quantitative Study of Chemical Reactions PPT Teaching Courseware

Description

"Conservation of Mass in Chemical Reactions" Quantitative Study of Chemical Reactions PPT teaching courseware, 23 pages in total.

qualitative research

What are these changes?

How does the quality of saplings change?

Thinking of the tree and its surrounding environment as a whole, does the total mass of matter change?

Ask a question

Does the total mass of a substance change before and after a chemical reaction?

Conjectures and Assumptions

The total mass of the substance before and after the chemical reaction remains unchanged.

concept construction

Conservation of mass

The sum of the masses of each substance participating in a chemical reaction is equal to the sum of the masses of each substance produced after the reaction. This law is called the law of conservation of mass.

All chemical reactions follow the law of conservation of mass!

Expand and improve

From both macro and micro perspectives, what new insights do you have about these two changes?

Carbon dioxide (CO2) + water (H2O) → organic matter (C.H.O) + oxygen (O2)

Organic matter (C.H.O) + oxygen (O2) → carbon dioxide (CO2) + water (H2O)

How to treat:

"You may contain an atom in your body that was found in dinosaurs tens of millions of years ago"?

Home experiment

Use household items to design and complete small home experiments to verify the law of conservation of mass.

Design and install the experimental device yourself, fill in the experimental report, and submit it together with the experimental device.

Information reference:

The reaction between vinegar and alkaline noodles:

Sodium carbonate + acetic acid → sodium acetate + water + carbon dioxide

The reaction between toilet cleaning liquid and iron nails:

Iron + dilute sulfuric acid → ferrous sulfate + hydrogen

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For more information about the "Quantitative Study of Chemical Reactions and Conservation of Mass in Chemical Reactions" PPT courseware, please click the "Quantitative Study of Chemical Reactions PPT Mass Conservation in Chemical Reactions" PPT tab.

"Conservation of Mass in Chemical Reactions" Quantitative Study of Chemical Reactions PPT Download:

"Conservation of Mass in Chemical Reactions" Quantitative Study of Chemical Reactions PPT download, 22 pages in total. Learning objectives: 1. Be able to understand the law of conservation of mass through experimental exploration; 2. Be able to flexibly use the law of conservation of mass to explain and solve phenomena and problems in common chemical reactions. quality..

"Conservation of Mass in Chemical Reactions" Quantitative Study of Chemical Reactions PPT Courseware:

"Conservation of Mass in Chemical Reactions" PPT courseware on quantitative research on chemical reactions, 28 pages in total. New Knowledge Learning Knowledge Point 1 Explore whether there is any change in the mass of a substance before and after a chemical reaction. First, we must determine a chemical reaction that occurs in ________ as the research object; secondly, we must examine...

"Conservation of Mass in Chemical Reactions" Quantitative Study of Chemical Reactions PPT:

"Conservation of Mass in Chemical Reactions" Quantitative Study of Chemical Reactions PPT, 24 pages in total. Learning objectives 1. Understand the law of conservation of mass, and be able to understand the mass relationship in chemical reactions through experimental exploration; 2. Be able to explain the law of conservation of mass from the perspective of particles. 1...

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Update Time: 2024-11-22

This template belongs to Chemistry courseware Lu Jiao Edition Ninth Grade Chemistry Volume 1 industry PPT template

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