(d) When an iron nail is dipped in copper sulphate solution and keppt undisturbed for an hour
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You can use the steepness, or slope, of a line in a distance-time graph to determine the speed of an object if speed is constant. The slope of the line is calculated by dividing the change in distance by the change in time for that time interval
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Explanation:
When Iron nail (Fe) is dipped in Copper sulphate (CuSO4) there takes reaction between them and copper sulphate change its color from blue to light green. This shows Iron is more reactive than Copper, it can replace Copper from CuSO4. ... So, the solution changes it color from Blue to Light Green.
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