Element, Compounds,
Is Be an element or compound?
Element
Say I mix instant coffee into water is this a pure substance or mixture?
Mixture
What seperation method would be used to seperate M & M's by color?
Hand seperation
How many elements are in a compound?
Two or more.
Are all elements pure substances?
Yes
When seperating salt and water from each other in a solution you would use ________.
Evaporation
All elements are made of compounds. True or false?
True
What are the two types of mixtures?
Homogenous and hetrogeneous
What seperation technique would be most affective for gold panning?
Gravity Seperation
Are two atoms of the same element identicle?
yes
What is the difference between a pure substance and a mixture?
A pure substance is something containing only one element or compund and a mixture consists of two substances not chemically bonded together.
What is filteration?
Filteration is a process where you seperate the liquid from solid in a mixture using something that only lets liquid pass through.
How many elements are on the periodic tabel?
118
Is milk a pure substance why or why not?
No it is not because it is a mixture of fat, protein, and water and can be seperated into 2 or more different substances.
Solvent extraction is used when?
Seperating 2 liquids