Across
- 7. oxygen combines with a substance and releases energy in the form of heat and light.
- 9. the study of quantitative relationships between the amounts of reactants used and products formed by a chemical reaction.
- 10. starting substances
- 12. is the SI base unit used to measure the amount of a substance.
- 14. states that the volume of a given amount of a gas held at constant temperature varies inversely with the pressure.
- 15. referred to as ideal gas constant.
- 16. process by which the atoms of one or more substances are rearranged to form different substances.
- 18. a ratio between the numbers of moles of any two substances in a balanced equation.
- 19. the mass in grams of one mole of any pure substance.
- 20. a solid produced during a chemical reaction in a solution.
Down
- 1. left over reactants
- 2. is a statement that uses chemical formulas to show the identities and relative amounts of the substances involved in a chemical reaction.
- 3. is one in which a single compound breaks down into two or more elements or new compounds.
- 4. a chemical reaction in which two or more substances react to produce a single product.
- 5. 6.02 x 1023
- 6. states that the volume of a given mass of a gas is directly proportional to its kelvin temperature.
- 8. a formula that shows the smallest whole-number ratio of the elements of a compound, and may or may not be the same as the actual molecular formula.
- 9. the substance dissolved in a solution.
- 11. a substance dissolved in a solution.
- 13. specifies the actual number of atoms of each element in one molecule or formula unit of the substance.
- 17. limits the extent of the reaction and, thereby, determines the amount of product.
- 20. which are the substances formed during the reaction.