During the displacement reaction , copper (cu) and zinc nitrate (<span> 2 ZnNo<span>3 )</span></span> are the products . hope this helps :)
Explanation:
We know that molarity is the number of moles of solute present in liter of solution.
Mathematically, Molarity = 
As molarity is dependent on volume and volume of a solution or substance is dependent on temperature. So, with increase in temperature there will occur a decrease in volume of the solution. As a result, molarity will increase as it is inversely proportional to volume.
Hence, molarity of both the solutions will be different as temperature of both the solutions is different.
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First write out the eqn, and balance it.
next, take 12.8g/mr of aluminium
this will give u the mols of aluminium
next, take the ratio of HCL and Al, compare and find the mols of HCL.
take the mols of HCL/mr of HCL to give u mass
doneee
