"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 target

1. Understand the neutralization reactions that occur between acids and bases

2. Will 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 the reaction between sodium hydroxide and hydrochloric acid

Ask the question: What reaction occurs between an acid and a base?

Experimental verification: dilute hydrochloric acid and sodium hydroxide solution are directly mixed

Can you devise a feasible scheme to demonstrate that a reaction occurs between an acid and a base?

[Experiment 10-8]Add about 5mL of sodium hydroxide solution into the beaker, and add a few drops of phenolphthalein solution. Then slowly drop in dilute hydrochloric acid with a dropper, and stir the solution continuously until the color of the solution turns colorless.

Consolidate and expand

1. Which of the following reactions is a neutralization reaction ( )

A. Zn + 2HCl = ZnCl2 +H2↑

B. CuO + 2HCl = CuCl2+ H2O

C. Ba(OH)2+ H2SO4 = BaSO4 ↓+ 2H2O

D. AgNO3+HCl = AgCl↓ +HNO3

2. Among the following substances, which one is not a salt ( )

A.Fe(OH)2 B.AgCl

C.Na2CO3 D.H2SO4

Practical applications of neutralization reactions

Direct discharge of wastewater from sulfuric acid plants will cause environmental pollution. How to treat the wastewater?

Treat with slaked lime

Principle: H2SO4+ Ca(OH)2 = CaSO4 + 2H2O

What should I do if a tanker carrying concentrated sulfuric acid rolls over on the highway and the sulfuric acid leaks?

Treat with slaked lime

Principle: H2SO4+ Ca(OH)2 = CaSO4 + 2H2O

my gains

1. Neutralization reaction (acid + alkali = salt + water)

Explore whether the neutralization reaction occurs, use the disappearance of reactants or verify the formation of new substances.

2. Application of neutralization reaction in real life:

A. Agriculture: Acidic soil can be improved

B. Industry: Treating wastewater from factories

C medicine: treatment of hyperacidity, etc.

D.Others

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"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:

"Neutralization Reaction of Acids and Bases" Acids and Bases PPT Courseware Learning Objectives 1. Know that what occurs between acids and bases is a neutralization reaction 2. Understand the application of neutralization reactions in practice 3. Understand the effects of acid and alkali on life activities and the impact on crops 4. Can use pH test paper to qualitatively measure the solution.