<span>To solve this question we have the density of gold expressed in gram per milliliter and we want to express in decigrams per liter. First we are going to change gram to decigram, knowing that 1 gram are 10 decigrams:
19,3 g/ml * 10 dg/1 g = 193 dg/ml
Then we change milliliter to liter, knowing that 1000 ml are 1 liter:
193 dg/ml * 1000 ml/1 l = 193000 dg/l
So then, density of gold is 193000 decigram/liter</span>
Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster.
