Matter + Energy Flashcards
1
Q
Matter exists as pure:
A
Elements, Compounds, Mixtures.
2
Q
Mixtures can be:
A
Homogeneous and Heterogeneous.
3
Q
Heterogeneous mixtures are obvious composted of at least:
A
2 different substances.
4
Q
Elements and compounds have only one type of:
A
Atom or Molecules in them.
5
Q
Mixtures can be separated by:
A
Physical change.
6
Q
3 ways to separate mixtures:
A
Filtration, Chromatography and Evaporation.
7
Q
Solutions are:
A
Homogeneous mixtures.
8
Q
Compounds have:
A
Fixed composition.
9
Q
In a chemical change, you must:
A
Produce a new substance.
10
Q
Reactions that release heat:
A
Exothermic.
11
Q
Reactions that absorb heat:
A
Endothermic.
12
Q
3 phases of matter are:
A
Solid, Liquid, Gas.
13
Q
Heat is a transfer of:
A
Thermal energy.
