"Neutralization Reaction of Acids and Bases" Acids and Bases PPT

Description

"Neutralization Reactions of Acids and Bases" Acids and Bases PPT, 20 pages in total.

Curriculum standard requirements

learning target

1. Know the neutralization reaction that occurs between acids and bases.

2. Understand the impact of acidity and alkalinity on life activities and crops, and the practical application of neutralization reactions.

Learning points

Neutralization reaction between acids and bases.

Learning difficulties

The process of exploring neutralization reactions.

New course introduction

Different acid solutions contain H+, so the acids have some similar properties; different alkali solutions contain OH-, so the bases also have some similar properties.

So, can acids and bases react?

Classroom inquiry

Knowledge point 1 Neutralization reaction

1. Add a few drops of phenolphthalein solution to the sodium hydroxide solution.

2. Then slowly drop in dilute hydrochloric acid with a dropper and stir the solution continuously.

Think: When do hydrochloric acid and sodium hydroxide react completely?

Add hydrochloric acid dropwise until the solution changes from red to colorless.

Thinking: A classmate added hydrochloric acid too fast and the solution turned colorless. How to judge whether there is too much hydrochloric acid?

(1) Drop in the sodium hydroxide solution. If it does not turn red immediately, it means overdose.

(2) Drop the litmus solution. If it turns red, it means overdose;

(3) Add magnesium strips. If bubbles appear, it means too much.

Knowledge point 2: Application of neutralization reaction in practice

1. Change the acidity and alkalinity of the soil:

2. Treat factory wastewater:

3. Used in medicine:

Textbook exercises

1. (3) The following methods can solve some problems in life:

① Taking drugs containing aluminum hydroxide [Al(OH)3] can treat hyperacidity. The chemical equation of the reaction is __________.

② After a thermos bottle has been used for a long time, a layer of scale often adheres to the inner wall of the bottle (the main components are CaCO3 and Mg(OH)2). It can be washed with ________. Write the chemical equation for its reaction with Mg(OH)2: _______________________________.

Keywords: Free download of PPT courseware for the second volume of the ninth grade of Chemistry published by the People's Education Press, PPT download of the neutralization reaction of acids and bases, PPT download of acids and bases, .PPT format;

For more information about the PPT courseware "Acid and Base Neutralization Reaction of Acids and Bases", please click on the PPT tag of Acids and Bases PPT Neutralization Reaction of Acids and Bases PPT.

"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 4:

"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 4 Asked the question: What reaction will occur between acids and bases? Experimental verification: Direct mixing of dilute hydrochloric acid and sodium hydroxide solution. Observed phenomenon: No obvious phenomenon. Conclusion: There is no conclusion that you can devise a feasible solution...

"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 3:

"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 3 Learning Objectives 1. Through experiments, confirm the neutralization reaction between acids and bases, and further understand the principle of neutralization reactions from a microscopic perspective; 2. Understand Effects of acids and alkalis on life activities and crops; 3..

"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 2:

"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware 2 Learning Objectives 1. Master the neutralization reaction that occurs between acids and bases 2. Be able to design experiments to prove that reactions can occur between common acids and bases; 3. Understand the application of neutralization reactions and the concept of salt. Explore sodium hydroxide..

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Update Time: 2024-09-09

This template belongs to Chemistry courseware People's Education Press Ninth Grade Chemistry Volume 2 industry PPT template

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