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Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
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Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?
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Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?
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What is the smallest unit that makes up matter?...
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