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Hard Water When washing with soap, do you find that the soap does not lather or leaves a floating scum on the surface of the water? This is HARD WATER
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Vocabulary Unit 8 Level D. 1. Assurance (n.) a pledge; freedom from doubt, self- confidence The airport was built with the ASSURANCE that all the people
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(Write this) If everything is made of atoms… and atoms combine to make molecules,…
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WATER The Universal Solvent Introduction 1. 19.1 Water is colourless. Water has no smell. It is odourless. Water is tasteless. Water is shapeless. Water
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