Lesson 17
7.3 Reversible reactions
- Understand that some chemical reactions can be reversed by changing the reaction conditions. (Limited to the effects of heat and water on hydrated and anhydrous copper(II) sulfate and cobalt(II) chloride.) (Concept of equilibrium is not required.)
- Predict the effect of changing the conditions (concentration, temperature and pressure) on other reversible reactions
- Demonstrate knowledge and understanding of the concept of equilibrium
8 Acids, bases and salts
8.1 The characteristic properties of acids and bases
•Describe the characteristic properties of acids as reactions with metals, bases, carbonates and effect on litmus and methyl orange•
Describe the characteristic properties of bases as reactions with acids and with ammonium salts and effect on litmus and methyl orange
•Describe neutrality and relative acidity and alkalinity in terms of pH measured using universal indicator paper (whole numbers only)
•Describe and explain the importance of controlling acidity in soi
Define acids and bases in terms of proton transfer, limited to aqueous solutions
•Describe the meaning of weak and strong acids and bases
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