Topic 3

Question 1

Homogenous

Answer 1

single type of mineral or earth material

Question 2

heterogenous

Answer 2

made up of several different types of minerals or earth materials

Question 3

what controls physical properties of a minerla

Answer 3

how the atoms in crystal lattice are arranged and how the atoms bond together

Question 4

Mineral classes

Answer 4

Silicates (Si,O) native elements ( single element) oxides(o) sulfides(S) sulfates (SO) halides ( halogen) carbonates (C)

Question 5

How do minerals form

Answer 5

solidification, precipitation from a solution, solid state diffusion, biomineralization , precipitation from a gas

Question 6

how many types of rocks are there

Answer 6

3 - Igneous, sedimentary, metamorphic

Question 7

difference in strong covalent bonds versus weal covalent bonds

Answer 7

strong covalent bonds are well formed and are very hard
Weak covalent bonds are soft rocks

Question 8

how can a tetrahedra achieve a net neutral charge

Answer 8

form ionic bonds with cations
covalently bond adjacent tetrahedra
use both methods in different proportions