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OHVA Physical Science 8
For kids like me who need to learn their science!
Terms in this set (22)
mixtures in which different part have different compostions, made of different proportions of particular atoms and molecules.
a mixture in which the ratio of each component to the others is the same everywhere in the mixture.
a mixture which the substances are completely and evenly mixed; down to their individual molecules. Sugar-water is a solution
the amount of a substance
law of conservation
a law that states that all mass is conserved during a chemical reaction.
a chemical reaction in which energy is released into it's surroundings.
a chemical reaction in whcih energy is absorbed from it's surroundings. It absorbs more energy from it's surroundings than it releases.
an exothermic reaction in woth oxides are usually formed. We get energy from fuels as the result of combustion energy.
a kind of chemical reaction in which a single compound is broken down into more simpler compounds.
separation of substances in a mixture by which differences in their attraction to a substance over which they passed.
physicially separating a solution of a solid and a liquid by boiling off the liquid.
to evaporate at a certain temperature.
a substance present during a chemical reactio0n but is not used up or changed duringa chemical reaction.
the state of a chemical system in which the rates of the forward and reverse reactions are equal.
the force of attraction between a charged atom (or a group of connected atoms) and the other with the opposite charge, it usually contains a metal and nonmetal.
the electrons in the outermost shell of an atom.
a bond in whcih electrons are shared in between the bonded atoms.
a molecule consisting of repeating chemical units, it is covalent. It can form long chains. Repeating along chain is called a monomer.
the starting molecules in a chemical reaction.
the molecules that result from a chemical reaction.
a solid that forms as a result of a chemical reaction. A white sold preciptate may form when aluminum chloride is added to a sunstance that contains aluminum.
bonds are rearranged to form glucose and oxygen.
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