"Transformation of Matter" PPT (Lesson 3)

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"Transformation of Matter" PPT (Lesson 3)

Part One Content: Learning Objectives:

1. Know the mutual transformation between compounds

2. Grasp the rules of mutual transformation between substances.

Transformation of substances PPT, part 2: mutual transformation between compounds

1. Formation of stalactites and stalagmites

CaCO3 + H2O +CO2 == Ca(HCO3)2

Ca(HCO3)2 == CaCO3↓+ H2O +CO2↑

2. Changes in eggshells

① Place a raw egg (or mussel shell) into a container filled with dilute hydrochloric acid, as shown in the picture, and observe the experimental phenomenon

② After taking it out after 2 minutes, what happened to the eggshell?

③ Take it out after 10 minutes. What changes will happen to the eggshell?

PPT on the transformation of matter, the third part: Expansion: Ten laws of salt formation

1. Metal + non-metal → anoxic acid salt

2. Metal oxide + non-metal oxide → oxo acid salt

3. Acid + alkali → salt + water

4. Soluble salt + soluble salt → new salt + new salt (one kind of salt is difficult to dissolve)

5. Metal oxide + acid → salt + water

6. Non-metal oxide + soluble alkali → salt + water

7. Acid + salt → new salt + new acid

8. Soluble base + soluble salt → new base + new salt

9. Metals before H + acid → salt + hydrogen

10. Active metal + soluble salt of less active metal → new metal + new salt

Transformation of matter PPT, part 4: practice

1. Use zinc to recover silver from waste liquid containing silver nitrate. The correct chemical equation is---- ( )

A． Zn＋Ag(NO3)2 = Ag＋Zn(NO3)2

B. Zn＋AgNO3 = Ag＋ZnNO3

C. Zn＋2AgNO3 = 2Ag＋Zn(NO3)2

D. Zn＋AgNO3 = Ag＋Zn(NO3)2

2. The solutions of the following groups of substances can be identified without other reagents---- ( )

A． HCl　CuSO4　KNO3　Na2SO4

B. FeCl3　HCl　NaCl　NaOH

C. CaCl2　K2CO3　HCl　(NH4)2CO3

D. NaNO3　Na2SO4　HCl　H2SO4

3. Write the chemical equation for each of the following reactions.

Limestone → Quicklime → Hydrated lime → Calcium carbonate

CaCO3 = CaO + CO2↑

CaO + H2O = Ca(OH)2

Ca(OH)2 + CO2 = CaCO3 ↓+ H2O

Keywords: Zhejiang Education Edition ninth grade science PPT courseware free download, transformation of matter PPT download, .PPT format;

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Update Time: 2024-12-04

This template belongs to science courseware Zhejiang Education Edition Ninth Grade Science Volume 1 industry PPT template

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