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ELEMENTS, HOMOGENEOUS MIXTURES, HETEROGENEOUS MIXURE, MATTER, Definition …
ELEMENTS
Define and examples
COMPOUNDS
Substance that contains two or more elements chemically combined in a fixed proportion.
EXAMPLES
-H2O
-NaCl
-CuO
A substance that can't be separated into simpler substance by chemical means.
EXAMPLES
-He
-Ne
-Mg
-O2
HOMOGENEOUS MIXTURES
Examples
-Air
-seawater
-steel
A mixture with no visible separation between its component
HETEROGENEOUS MIXURE
A mixture in while the components can be visibly distinguished.
EXAMPLES
-Granite
-saturated solution
MATTER
Classify
pure substance
Element
Definition
A substance consists of one type of atom
Atom
Definition
Smallest particles of an element that can participate in a chemical reaction
Example
-Al
-Mg
-Ne
Molecules
Definition
A group of two or more atoms which are chemically bonded
Example
-H2O
-O2
Br2
Compound
Molecule
Define
A substance consists two or more elements that are chemically bonded.
Example
-H2
-Cl2
Iconic
Define
A positively or negatively charged particle
Example
-HCL
-MgSO4
NaCl
Definition
Occupies space and has mass