20 is the slope of the given graph
The density of the pure gold is 19.3g/cc. here in this figure it is given that a graph plotted against mass vs volume. the slope is calculated by
y₂-y₁/x₂-x₁ = 0.4-0.1/0.02-0.005
=20
density of the sample is so from the above given data the calculated average density we get it 19.3 which is the pure golds density.
Gold nuggets are naturally occurring pieces of gold in nature. Streams often concentrate nuggets and fine gold in placer gold. Nuggets are obtained from placer mining, but are also found in gold-bearing veins or deposits of weathered deposits.
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