class 1 Flashcards
1
Q
what is matter?
A
anything that has mass and occupies space
2
Q
what is an atom
A
atoms are the smallest building block of matter
3
Q
what are compounds
A
compounds are molecules that contain at least two different elements joined together
4
Q
what are elements
A
elements are pure substances that cannot be broken down into any other substances
5
Q
what is a mixture
A
a mixture is made up of two or more elements or compunds physically combined
6
Q
alloy
A
a mixture of 2 or more elements where the major one is metal
7
Q
what is a homogenous mixture
A
a mixture that has one phase
8
Q
what is a heterogenous mixture
A
a mixture that has several phases
9
Q
what is an alloy
A
a mixture of two or more elements where the major one is metal
