Describe the silica tetrahedron.
the structure of the mineral olivine is described as isolated tetrahedral. what does this mean?
why is color an unreliable property for identifying minerals?
what’s the main difference between metallic and nonmetallic luster in minerals?
how are cleavage and fracture of minerals different?

b.final

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3