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Definition
| Smallest piece of matter. |
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Definition
Another name for atom.
Also found on the periodic table.
Example: Ne (Neon) |
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Definition
Two different elements bonded together.
Example - Na + Cl = NaCl |
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Definition
Two or more elements bonded together.
They can be the same element bonded together
Example: O2
Or they may be similar to a compound
Example: C6H12O6 |
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Definition
The large number in front of a formula
Example: 4 H2O
This number tells you there are 4 H2O molecules. |
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Definition
The number after an element. It tells you how many of that element you have.
Example: H2O
There are 2 hydrogen atoms in this formula.
Oxygen has only 1. If there is no number you know there is only one. |
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Term
Is this an element, compound or molecule?
Be |
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Definition
Element.
Be is Beryllium and can be found on the periodic table. |
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Term
Is this an element, compound or molecule?
CO2 |
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Definition
Compound and Molecule
It is a compound because it is made of two different elements
Carbon and Oxygen
It's a molecule because I have more than two atoms attached. |
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How many atoms are in this formula?
2 C6H12O6 |
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Definition
Remember: the 2 means there are two molecules.
There are 12 -Carbons, 24 Hydrogens and 12 oxygens
C6 H12 O6
+C6 H12 O6
__________
C12H24O12 |
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Definition
A mixture that looks like two things mixed together.
Example: Orange Juice with pulp |
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Definition
| A mixture that looks like one thing. Example: Sugar Water |
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Definition
| When a substance dissolves and forms a homogeneous mixture. |
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Definition
| Heterogenous mixture that seperates over time. |
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Definition
| When part of the substance changes, but the material it is made of stays the same. Example: Ice to Liquid water |
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Definition
| When a substance reacts and forms a new substance. (You cannot bring it back to its orignal substance) |
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