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Question
Hard water is due primarily to dissolved salts of which elements?A) Zinc and copper
B) Calcium, iron, and magnesium
C) Sodium and potassium
D) Sodium and chlorine
Answer
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Related questions
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In the equation A = B/C, the A and B are said to be _______________ proportional.
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Newton's third law of motion states that the force pair acting on different objects consists of two forces that
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______________ principle explains why objects float or sink in a fluid.
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