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SOLID
Particles are tightly packed and arranged in a regular structure. They also vibrate in position.
LIQUID
Particles are not arranged in a regular pattern but have little space between them. They slide and roll past one another.
GASES
Particles are widely spaced and fill the space they are in. They move around quickly.
Physical properties
can be observed or measured without changing the identity of the matter.
Chemical properties
its ability to undergo changes that transform it into different substances.
If it CHanges, it’s CHemical
How do you know if it is chemical or physical?
Solution
A homogeneous mixture of two or more substances in variable composition.
Mixture
Made up of two or more substances that are physically combined.
Homogeneous Mixture
Have only one phase or uniform appearance throughout
Heterogeneous Mixture
Forms more than one phase and the components are visibly distinguishable from one another
Elements
Substances that are made up of only one type of atom.
Radioactivity
A spontaneous emission of energetic particles from an atom.
Pure substances
Are forms of matter that have a definite chemical compositiom.
Deposition
A process in which a gas changes into a solid as heat is removed.
Physical change
Occurs when the composition of the substance is not altered in the process.
Chemical change
Occurs when a substance is changed into another substance that has a completely different set of physical and chemical properties compared to the original substance.
