Across
- 2. a reaction in which two or more substances combine to form a new compound
- 6. an element that conducts heat and electricity poorly and that does not form positive ions in an electrolytic solution
- 8. the state of matter in which the volume and shape of a substance are fixed
- 9. a structural formula in which electrons are represented by dots; dot pairs or dashes between two atomic symbols represent pairs in covalent bonds
- 15. one of the elements of Group 18 of the periodic table (helium, neon, argon, krypton, xenon, and radon); unreactive
- 16. a prescribed decimal place that determines the amount of rounding off to be done based on the precision of the measurement
- 17. an arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column, or group
- 19. a chemical formula that shows the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio
- 22. The law that states the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements
- 24. one of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine); it combines with most metals to form salts
- 26. the substance that is not used up completely in a reaction
- 27. the substance that controls the quantity of product that can form in a chemical reaction
- 29. a measure of the ability of an atom in a chemical compound to attract electrons
- 30. the number of electrons that must be added to or removed from an atom in a combined state to convert the atom into the elemental form
Down
- 1. the mass in grams of 1 mol of a substance
- 3. a reaction in which one element or radical takes the place of another element or radical in a compound
- 4. an ion made of two or more atoms
- 5. a chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of the atoms
- 7. the maximum amount of product that can be produced from a given amount of reactant
- 10. the oxidation reaction of an organic compound, in which energy as heat is released
- 11. a reaction in which a gas, a solid precipitate, or a molecular compound forms from the apparent exchange of atoms or ions between two compounds
- 12. a conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction
- 13. the percentage by mass of each element in a compound
- 14. an element that is shiny and that conducts heat and electricity well
- 18. the attractive force that holds atoms or ions together
- 20. the attractive force that holds atoms or ions together
- 21. a reaction in which a single compound breaks down to form two or more simpler substances
- 23. a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
- 25. the condition of an atom expressed by the number of electrons that the atom needs to reach its elemental form
- 28. a region in an atom where there is a high probability of finding electrons