....... no answer .........
Answer:
distance velocity displacement, all three
Explanation:
The density of the sample is:
Density = mass / volume
Density = 9.85 / 0.675
Density = 14.6 g/cm³
If the sample has 95% gold, and 5% silver, its density should be:
0.95 x 19.3 + 0.05 x 10.5
Theoretical density = 18.9 g/cm³
The difference in theoretical and actual densities is very large, making it likely that the jeweler was not telling the truth.
NH₄Cl → NH₄⁺ + Cl⁻
NH₄⁺ (the ammonium cation)
0.00032 / 140000000
=0.000000000002
=2 x 10^-12
