Across
- 2. a reaction in which a compound breaks down into two or more simpler substances
- 7. a reaction in which one element replaces a similar element in a compound
- 8. a chemical reaction that releases energy by light or heat
- 13. species formed from chemical reactions
- 14. symbolic representation of a chemical reaction in the form of symbols
- 15. 6.02214076 × 1023 of some chemical unit
Down
- 1. a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat
- 3. reactions that involve the transfer of electrons from one species to another
- 4. a chemical process in which two or more simple elements or compounds combine to form a more complex product
- 5. a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
- 6. any chemical reaction that absorbs heat from its environment
- 9. substance that undergoes a change during a reaction
- 10. energy stored in the bonds of chemical compounds, like atoms and molecules
- 11. the mass of one mole of any substance
- 12. a factor that is multiplied by a variable or another quantity in an equation or formula