Combining and Breaking Down Substances Vocab ENTRY #8:
1. Compound-is a substance that is made from two or more simple
substances that can be broken down by chemical means.
2. Mixture-is a physical combination of two or more substances.
3. Heterogeneous-the parts of the mixture are noticeably different
from one another.
4. Homogeneous-the substances are so evenly distributed that is
difficult to distinguish one from another.
5. Solution-a mixture that forms when a substance dissolves in a
liquid and forms a homogeneous mixture
6. Solute-substance that dissolves in a liquid of a solution
7. Solvent-a liquid which contains a substance that dissolves in a
solution
8. Chemical Bond-force that holds atoms or ions together
9. Chemical Formula-shows the elements in a compound and the
ratio of the atoms in the compound
10.Ionic Bond-bond formed from attractive force between oppositely
charged ions
11. Covalent Bond-bond formed from the sharing of valence
electrons
12. Synthesis Reaction-is a reaction in which two or more substances
react to form a single substance
13. Decomposition Reaction - This a reaction in which a compound
breaks down into two or more simpler substances
14. Replacement Reaction-is a reaction in which one or more
elements take the place of one or more elements in a compound,
resulting in a new compound.
15. Combustion Reaction-is a reaction in which a substance reacts
rapidly with oxygen,
which often produces heat and light.
16. Temperature- increase this will increase a reaction rate.
17. Surface Area-The more area exposed the faster the reaction
18. Stirring- increases the exposure of reactants to each other
19. Concentration-The more reactants, the faster the particles will
react.
20. Catalyst -is a substance that affects the reaction rate without
being used up in the reaction