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Book 2B Unit 9


Unit 9 Acids and Alkalis

 

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Experiment 9.1 Preparing a natural indicator (NEW)
Experiment 9.2 Classifying solutions as acidic, alkaline or neutral (NEW)
Experiment 9.3 Using universal indicator solution to find the pH values of different solutions (NEW)
Experiment 9.4 Using pH paper to find the pH values of some substances (NEW)
Experiment 9.5 Using a pH meter to measure the pH values of some substances (NEW)
Experiment 9.6 Studying the change of pH value during neutralization (NEW)
Experiment 9.7 Are there any new substances formed during neutralization? (NEW)
Experiment 9.8 Is mass conserved in neutralization? (NEW)
Experiment 9.9 Reactions between acids and metals (NEW)
Experiment 9.10 Reactions between acids and building materials (NEW)
Experiment 9.11 Investigating the effect of acidic solutions of different pH values on the growth of seedlings (NEW)
Experiment 9.12 Corrosive effect of concentrated strong alkali (NEW)



Book 2B



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Formation and effect of acid rain



pH values of different substances



China rose water as a natural indicator



Neutralization in daily life



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King's Park Meteorological Station
T‧PARK
Greenhouse
Virtual Reality User Guide



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Laboratory apparatus drawer
Illustrator



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Section 9.1
Section 9.2
Section 9.3
Section 9.4
Section 9.5
Integrated Exercise