Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. which of the following is true about the relative ph of the two substances?
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Bridget is in science class. her teacher gives her two unknown substances and asks her to determine...
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