Across
- 1. a reaction in which two or more substances combine to form a new compound
- 3. a representation of a chemical reaction that uses symbols to show the relationship between the reactants
- 4. the mass in grams of 1 mol of a substance
- 7. a reaction in which a gas, a solid precipitate, etc. forms from the apparent exchange of atoms or ions between two compounds
- 11. the SI base unit used to measure amount of a substance whose number of particles is the same as the number of atoms of carbon in exactly 12g or carbon-12
- 13. a chemical formula that snows the number and kinds of atoms in a molecule, but not the arrangement of the atoms
Down
- 1. reactions of an element with a compound that produces a new element and compound
- 2. the number of protons in the nucleus of an atoms the atomic number is the same for all atoms of an element
- 5. a chemical formula that shows the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio
- 6. 6.02*10^23, the number of atoms or molecules in 1 mol
- 7. a reaction which a single compound breaks down to form two or more simpler substances
- 8. the percentage by mass of each element in a compound
- 9. the oxidation reaction of an organic compound, in which heat released
- 10. the process by which one or more substances change to produce one or more different substances
- 12. a small whole number that appears as a factor in front of a formula in a chemical equation