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Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?
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If there is any 12 to 14 girls that need a boyfriend just follow me and let me know
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When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
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Which one of the following does NOT suggest that a chemical reaction had occurred?...
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