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19 Cards in this Set
- Front
- Back
Substance |
The actual matter of a thing, not appearance The apple is coated in a sticky substance |
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Atom |
The basic unit of all matter Everything that ever was or ever is, is made of atoms |
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Element |
A substance that can not be separated into smaller substances Irons chemical elements symbol is Fe |
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Compound |
Two or more elements together Soap is a compound of chemicals |
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Molecule |
A group of atoms bounded together This problem is molecule |
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Mixture |
a substance made by mixing other substances together
The eggs and flour mixed together
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Physical Change |
A physical change is a change in which no new substances are formed
The water turned to ice
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Reaction |
the reciprocal action of chemical agents upon each other
the gun powder reacted to the spark |
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Reactants |
a substance that takes part in and goes though change during a reaction
The reactants were baking soda and vinegar |
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Products |
a substance obtained from another substance through chemical change
Boron chloride BC1 3 results when amorphous boron is heated in chlorine product being condensed in a tube surrounded by a freezing mixture |
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Chemical Change |
Chemical change is any change that results in the formation of newchemical substances
If you are waiting for some bananas to ripen, you are waiting for a chemical change |
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Chemical Formula |
A representation of a substance using symbols for its constituent elements
French doctors have come up with a chemical formula that can reverse the aging process and make me look 10 years younger.!
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Laws of Conservation of mass |
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations
Laws of conservation of mass states that mass can not be created of destroyed
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Thermal Energy |
Thermal energy is the energy that comes from heat
The temperature of a thing is its thermal energy |
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Chemical Energy |
Chemical Energy is energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction, often producing heat as a by product
The glow sticks glass vial breaks and mixes with the outside chemical to create a glowing substance
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Chemical EquationChemical Equation |
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formula
Sodium+Chlorine=Sodium Chlorine
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Endothemic |
Accompanied by or requiring the absorption of heat.
Once the reactants reached a temperature the product is made. |
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Exothermic |
Accompanied by the release of heat.
An exothermic reaction is a chemicalreaction that releases energy by light or heat. It is the opposite of an endothermic reaction
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Combustion |
The process of burning something.
The woods burns very well.
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