Question

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Answer 1

Answer:

Sodium chloride, commonly known as salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl. 

Explanation:

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Answer 2

Explanation:

They were built underground with stairs. Thus the pit-houses protected people from cold weather. Cooking chimney corners were also found both inside and outside the huts