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A chemical change occurs when substances chemically react with one another. true or false
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Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
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What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
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Citric acid has a ph between 1 and 3. it is considered to be aa. weak acidb. weak basec. strong based. strong acid
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In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next
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A chemical change occurs when substances chemically react with one another. true or false...
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