Vocab Definition

1. A chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of the atoms.
4. a mixture that contains the relative amounts of reactants that match the numbers in the balanced equation
5. a chemical change that involves an exchange of positive ions between two compounds
9. making sure atoms on left = atoms on right. (following law of conservation of mass).
10. A starting material in a chemical reaction
11. a reaction in which two or more substances combine to form a new compound
12. The elements or compounds produced by a chemical reaction.
16. number of representative particles in a mole, 6.02 X 10^23
19. the calculation of the quantities of material consumed and produced in chemical reactions
20. the maximum amount of product that can be produced from a given amount of reactant
21. the SI base unit used to measure the amount of a substance
22. a chemical reaction that occurs when the atoms of one element replace the atoms of another element in a compound

2. the substance that controls the quantity of product that can form in a chemical reaction
3. the weighted average of the atomic masses of the naturally occurring isotopes of an element
6. the mass of one mole of a pure substance
7. the ratio of the actual yield to the theoretical yield expressed as a percent
8. a reaction in which a single compound breaks down to form two or more simpler substances
13. a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
14. A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
15. the number of grams of solute in each 100 g of solution
17. a chemical formula showing the ratio of elements in a compound rather than the total number of atoms
18. an instrument used to determine the relative masses of atoms by the deflection of their ions on a magnetic field