"Properties of Salt" Salt PPT Courseware

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"Properties of Salt" Salt PPT Courseware

1. Physical properties of salt: solubility

1. Write down the common salts that are insoluble in water:

(1). Hydrochloride _____; (2). Sulfate _____; (3). Carbonate _____. _______;

(4).Alkali _______ . ________ .

2. Write two salts _____ ._____ that are insoluble in water and insoluble in dilute nitric acid.

3. Write down the carbonates that are soluble in water _______ . ________ .

4. Write down the salts that are insoluble in water and soluble in acid ______ . _____ . ______ .

2. Chemical properties of salt

1. Salt + metal = new salt + new metal

2. Salt + acid = new salt + new acid

3. Salt + alkali = new salt + new alkali

4. Salt + salt = new salt + new salt

Chemical property equation of salt: Please draw inferences from one example!

1. CuCl2+Zn=ZnCl2+Cu

2. BaCl2+H2SO4=BaSO4↓+2HCl

AgNO3+HCl=AgCl ↓ +HNO3

CaCO3+2HCl=CaCl2+H2O+CO2↑

3. CuSO4+2NaOH=Na2SO4+Cu(OH)2↓

Na2CO3+Ca(OH)2=CaCO3 ↓ +2NaOH

NH4Cl+NaOH=NaCl+NH3↑+H2O

4. BaCl2+2AgNO3=2AgCl↓+Ba(NO3)2

Exercise 1: Among the following reactions, which one can be carried out ( )

A: Cu+AgCl— Ag+CuCl2 B: Zn+AgNO3--

C: Fe+CuCl2— FeCl3+Cu D: Cu+ZnSO4—

E: Zn+Cu(OH)2-- F: Fe+CuO —

G: Na+CuSO4— Cu+ Na2SO4 H: Cu+Hg(NO3)2—

I: Mg+HNO3— H2+Mg(NO3)2 J: Ag+HCl—

Exercise 2: If the zinc piece is put into the following salt solution, the mass of the solution will be reduced by ( )

A: MgCl2 B: CuCl2

C: AgNO3 D: ZnCl2

A: B: Zn→Cu C: Zn→2Ag D:

No response 65 64 65 2×108 No response

Discussion: Among the reactions that have been learned, which reactions can produce salts?

(1) Metal + acid → salt + H2

(2) Metal + salt → new metal + new salt

(3) Acid + alkali → salt + H2O

(4) Acid + basic oxide → salt + H2O

(5)Alkali + acidic oxide → salt + H2O

(6) Acid + salt → new acid + new salt

(7) Base + salt → new base + new salt

(8) Salt + salt → new salt + new salt

(9) Metal + non-metal → salt

Extracurricular thoughts:

1. There are five bottles of solutions that have lost their labels. They are ①CuCl2, ②Ba(NO3)2, ③NaOH, ④NaCl, and ⑤MgSO4. The order of distinction without other reagents is ＿＿＿＿＿.

2. Add iron powder to the mixed solution of Cu(NO3)2 and AgNO3, filter after full reaction.

(1). If dilute HCl is added to the filtrate and a white precipitate appears, then the cations in the filtrate are __________ and there are __________ on the filter paper;

(2). If dilute HCl is added to the solid in the filter paper and bubbles appear, then the cations in the filtrate are _____ and there are __________ on the filter paper.

3. Mix Na2CO3 solution and CaCl2 solution to obtain white precipitate and colorless filtrate a. Add AgNO3 to filtrate a to produce colored precipitate b. After filtering, add dilute nitric acid to precipitate b. Answer:

(1). If the precipitate b is not dissolved, then the ions in the filtrate a must be ____, there may be ____, and there must not be ____.

(2). If part b of the precipitate is dissolved, then the ion in filtrate a must be __________ and there must be no __.

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"Properties of Salt" Salt PPT Courseware 2:

"Properties of Salt" Salt PPT Courseware 2 Knowledge Review Knowledge Point 1 Properties of Salt 1. Salt can be regarded as a product of __________, but there are many more types of salts than acids and bases. 2. Properties of salt: (1) Most salts are ______ at room temperature, and their melting points are ______. (2..

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Update Time: 2024-07-02

This template belongs to Chemistry courseware Beijing Curriculum Reform Edition Ninth Grade Chemistry Volume 2 industry PPT template

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