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angelaguero536
09.07.2019 •
Chemistry
Which is a sign of a chemical change? a) ice cream left at room temperature melts. b) calcium chloride is dissolved in h2o and disappears. c) paint on a freshly painted wall dries and is no longer sticky. d)when h2s gas is bubbled into a lead acetate solution, a precipitate forms.
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>>>>D<<<<
%100 sure
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