C is the answer because he wants to know if less force is needed to pull on a slippery surface which reduces friction
The least reactive metal is lead, since it reacted with none of the salt solutions.
Extrapolation allows you to estimate values greater than those in your actual data.
True
Explanation:
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The products and reactants weigh the same since u have to balance out the equation to have an equal number of molecules on bothsides
