Chemistry Crossword

4. change in heat of the products from the reactantsCatalyst- a substance speeds up a chemical reaction without itself undergoing any chemical change.
6. equation shows only those reactants and products that are the new materials formed from the chemical reaction
7. atoms will gain, lose, or share valence e- to attain a 8 valence electrons
10. diffusion through a tiny opening
11. sharing of electrons by atoms so that all atoms involved achieve a filled valence level.
13. microscopic particles are dispersed evenly in another substance
16. the total amount of energy; movement
17. the amount of heat/energy to 1 gram of a substance by 1 degrees C.
18. biological catalysts that speed up the rate of reactions in the body
19. the temperature at which the EVP is equal to standard atmospheric pressure

1. transition of a substance directly from solid to gas
2. the point on a phase diagram in which two phases of a substance become indistinguishable from each other, a supercritical fluid. Supercritical fluids have the characteristics of both liquids and gases.
3. a description of an element's tendency to undergo chemical reactions.
4. a measure of how strongly atoms attract bonding e- to themselves. The higher the number, the greater the attraction for e-.
5. a mixture containing particles that settle out if left undisturbed
8. a reaction that produces heat
9. transfer of electrons between atoms, resulting in cations and anions
12. the random movement of gas molecules from an area of higher concentration to an area of lower concentration
14. the temperature and pressure at which the solid, liquid, and gas forms of a substance coexist.
15. transition of a substance directly from gas to solid