Across
- 4. 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others.
- 7. the species formed from chemical reactions.
- 8. a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
- 9. the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol).
- 10. a chemical reaction that involves the release of energy in the form of heat or light.
- 11. a number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction
- 12. a chemical process in which two or more simple elements or compounds combine to form a more complex product
- 13. a substance that takes part in and undergoes change during a reaction.
- 14. reactions that involve the transfer of electrons from one species to another.
- 15. a reaction in which one element replaces a similar element in a compound
Down
- 1. a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
- 2. symbolic representations of chemical reactions in which the reactants and the products are expressed in terms of their respective chemical formulae.
- 3. any chemical reaction that absorbs heat from its environment
- 5. a reaction in which a compound breaks down into two or more simpler substances
- 6. energy stored in the bonds of atoms and molecules.