CE Chemistry-A Summary

Part 4-Acid & Base

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Acid & Base

• The different type of indicators and the corresponding colour change in acidic or alkaline condition.
• The effect of the acid on metals, bases, carbonates and hydrogencarbonates.
• Aware of the formation of soluble calcium hydrogencarbonate when passing excess of carbon dioxide to lime water.
• Importance of water for acids.
• Basicity of acids.
• The different reactions between using dilute and conc. acids.
• The dehydrating and oxidizing property of conc. sulphuric acid.
• The effect of alkalis on metal ions.
• The different colours of precipitates.
• Distinguish between strength and concentration of acids.
• The measure of pH value.
• The formation of normal salt and acid salt.
• Some acid salt e.g. sodium hydrogencarbonate(NaHCO3)give alkaline solutions when dissolved in water.
• Uses of neturalization.