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8 Cards in this Set
- Front
- Back
homogenous
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ex: water
every portion of the water looks (and is) EXACTLy like every other portion of water; completely uniform throughout |
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heterogenous
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ex: choco. chip cookie
u can see choco. chips, pecans, cookie dough, etc. |
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homo substances can only be one of 3 things
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elements
compounds or solutions |
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element
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matter composed of only one type of atom
the sipmlest form of matter cannot be changed to another element except by a nuclear reaction |
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how many elements r discovered?
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116; 109- named and accpeted; 6 may be added this yr
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# of elements naturally occuring
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88
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symbol for the following:
carbon hydrogen oxygen nitrogen |
C
H O N |
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symbol for following
sulfur magnesium calcium chlorine |
S
Mg Ca Cl |