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In the chemical formula o2, what does the number 2 mean?
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Evaluate this exponential expression,8. (2 + 3)2 – 42
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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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Chemistry, 22.06.2019 19:50, VoidedAngel
When the mercury level in a barometer decreases that atmospheric pressure has
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In the chemical formula o2, what does the number 2 mean?...
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