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Q1. Sodium metal is very active with water. Therefore, determining the value of a block of sodium will be impossible by water displacement. On the other hand, the density of sodium metal can be found in the chemistry handbook. If you had 10.56 g of sodium what would be its volume at 20°C

Q2. Describe the physical change that takes place in potassium chloride salt substitute dissolves in water. Why is this not a chemical change?

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