Across
- 4. A characteristic that can be observed or measured without changing the sample’s composition.
- 5. When an acid and a base react to form a water and a salt.
- 6. Which chemical reaction is; Al2O3→Al+O2 .
- 9. The volume of a gas is inversely proportional to the pressure if the temperature is held constant.
- 10. The ability of a substance to combine with or change into one or more other substances.
- 11. A description of an element’s tendency to undergo chemical reactions.
- 13. Biological catalysts that speed up the rate of reactions in the body.
- 14. A measure of how strongly atoms attract bonding e- to themselves. The higher the number, the greater the attraction for e-.
- 15. A mixture that is not uniform
- 17. The total pressure in a gas mixture is equal to the sum of the partial pressure of the individual gases.
- 18. When one element is traded with another element in a compound.
Down
- 1. When two nonpolar atoms come in close contact, the electrons of one atom repel the electrons of another, creating a temporary dipole.
- 2. Occurs when solutions of two aqueous compounds are combined; the positive and negative ions of each compound exchange places
- 3. How close a measurement's results come to the true value.
- 7. An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable.
- 8. A device used to measure the energy absorbed or released as heat in a chemical reaction.
- 12. A compound/element that combines with O2 to form an oxide + sometimes H2O.
- 16. A substance that speeds up a chemical reaction without itself undergoing any chemical change. They do this by lowering the activation energy of the reaction.
- 17. The reproducibility of a result or measurement.
- 19. The pressure of a given mass of gas is directly proportional with the Kelvin temperature when volume is held constant.