Across
- 3. energy stored in the bonds of chemical compounds
- 4. chemical reaction in which the reactants absorb heat energy from the surroundings to form products
- 8. a substance that takes part in and undergoes change during a reaction
- 12. chemical reaction in which energy is released in the form of light or heat
- 14. chemical reaction that includes a transfer of electrons between two species
- 15. the number in front of the formula - tells how many molecules of a given formula are present
Down
- 1. high-temperature exothermic redox chemical reaction between a fuel and an oxidant that produces oxidized, often gaseous products
- 2. chemical reaction in which one element replaces another in a compound
- 5. chemical reaction in which two ionic compounds are exchanged and form two new components
- 6. chemical process in which simple elements or compounds combine to form a more complex product
- 7. chemical process in which one reactant breaks down into two or more products
- 9. unit of measurement for amount of substance - quantity proportional to the number of elementary entities of a substance
- 10. species formed from chemical reactions
- 11. the ratio between the mass and the amount of substance of any sample of said compound
- 13. reaction rearrangement of the molecular or ionic structure of a substance