What is apiece of courts that has 13 g and a volume of 6 cm and sup3?

To find the density of a piece of quartz with a mass of 13 grams and a volume of 6 cm³, you can use the formula for density: density = mass/volume. Plugging in the values gives you a density of 13 g / 6 cm³ = approximately 2.17 g/cm³. This density is consistent with quartz, which typically has a density ranging from about 2.6 to 2.7 g/cm³, suggesting that the piece may not be pure quartz or could have some voids or inclusions.