Step 1 action: we dissolved solids. We will use acidic substances in the solution. By creating a melting block of pb (oh) 2, because the concentration of acidic substances in the oh so small. We had to suspend the creation of the pb (oh) 2
step 1 action: we dissolve solid.we use acidic solution to prevent formation of solid pb (oh) 2. (since the concentration of oh in an acidic solution is small, we had to suppress formation of the pb (oh) 2)
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