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Chemistry, 22.06.2019 13:00
Is 9 correct? and can someone me with 10? it’s due tomorrow, you
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Chemistry, 22.06.2019 18:30
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, 23.06.2019 00:00
How many atoms or molecules are there in a mole of a substance?
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Chemistry, 23.06.2019 06:30
How can the number of core electrons be determined from the periodic table
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