1. Kaolinite, a clay mineral with the formula Al Si. O(OH), is used as a filler in slick-paper for magazines and as a raw material for ceramics. Analysis shows that 14.35 g of kaolinite contains
8.009 g of oxygen. Calculate the mass percent of oxygen in kaolinite.
A. 1.792 mass%
B. 24.80 mass%
C. 30.81 mass %
D. 34.12 mass %
E 55.81 mass %

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

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.