Chem 2

4. this is the mass of one mole of a compound
8. the actual yield divided by the theoretical yield times 100, The ratio of the actual yield to the theoretical yield, multiplied by 100
12. a quantity of a substance that contains Avagadro's number of items
13. a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
15. the weighted average of the masses of all naturally occurring isotopes of an element
16. one in which an element reacts by replacing another element in a compound
18. one in which two substances chemically combine to form a third
19. the study of the quantities of materials consumed and produced in chemical reactions.
20. the reactant that is used up when a reaction goes to completion
21. one in which two compounds exchange parts to form two new compounds.
22. one in which a single compound breaks up into two or more other substances

1. this is the symbolic representations of a chemical reaction where the number of atoms of each element is on the left of the arrow is equal to the number of stoms of each element on the right side
2. an instrument used to determine the relative masses of atoms by the deflection of their ions on a magnetic field
3. the calculated maximum mass of a product that can be obtained from the given amounts of reactants
5. this is the actual formula of each element in a compound
6. one that contains the relative amounts of reactants that match the number in the balanced equation
7. chemical substances involved at the start of a chemical reaction
9. this is a ratio elements in a compound using the smallest whole numbers
10. a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
11. chemical substances that result from a chemical reaction
14. this refers to the number of grams of a given element in 100g of a compound
17. the number of atoms in exaclty 12g of carbon-12. Rounded to four figures 6.022 x 10 23