Vocab
How is density measured?
Mass divided by Volume
Atoms are what you see when you cut to the smallest particle of an object.
True or False
E26
The elements are all organized on a 'table." What is the table called?
The Periodic table (of elements)
Two materials that are PHYSICALLY combined are called _______
Mixtures
Page E52
What are the particles like in a solid? Very packed together or very far apart?
Very packed together
Atoms contain the following 4 things:
Molecules
page e30
Mixtures are not pure because they contain more than 1 element or compound...If the substance in a mixture looks the SAME everywhere (homogeneous) what is called then?
A solution
Page E54
Water can be a solid, liquid or a gas! Put these states of matter for water in MOST dense (packed together particles) to LEAST dense (spread apart particles).
2 Ice -water
3 (least)Steam -water
Page E10
An atom with more protons has what kind of charge?
A positive charge
Most of the elements are metals. True or false?
True
Page E 29
When a mixture is neither a solution (homogeneous) or partly blended like a river (heterogeneous), what is it called?
A colloid
Page E54
Au is commonly known as ____
Gold :-)
A Marshmallow is an example of a solution or a colloid?
Colloid!