Across
- 2. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign
- 4. the strength and vitality required for sustained physical or mental activity.
- 5. having the properties of an alkali, or containing alkali; having a pH greater than 7.
- 6. the lowest part or edge of something, especially the part on which it rests or is supported.
- 7. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
- 8. is any chemical reaction that involves the gaining of electrons. Specifically, it refers to the side that accepts electrons. When iron reacts with oxygen it forms a chemical called rust. In that example, the iron is oxidized and the oxygen is reduced.
- 10. is a reaction that loses energy during the process of the reaction.
- 14. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- 15. physical restraints used to hold someone or something prisoner, especially ropes or chains.
- 16. a substance that takes part in and undergoes change during a reaction.
- 17. able to dissolve other substances.
- 20. the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids
Down
- 1. the minor component in a solution, dissolved in the solvent.
- 3. reactions include all chemical reactions in which atoms have their oxidation state changed; in general, redox reactions involve the transfer of electrons between species.
- 4. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- 9. bonding between a non-metal and a metal, that occurs when charged atoms (ions) attract after one loses one or more of its electrons, and gives it to the other molecule, for example sodium and chlorine.
- 10. the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have.
- 11. a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- 12. the action or power of focusing one's attention or mental effort.
- 13. the basic unit of a chemical element.
- 18. a thing that is composed of two or more separate elements; a mixture
- 19. scale is a measure of how acidic or basic a substance is
