Across
- 3. compound-any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon
- 7. substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
- 9. The substances that result from this recombination of atoms.
- 11. chain reaction- a series of nuclear fissions each initiated by a neutron produced in a preceding fission.
- 12. electron-an electron that is associated with an atom, and that can participate in the formation of a chemical bond
- 13. theory- Explains why chemical reactions occur and why reaction rates differ for different reactions.
- 15. chemical compound that conducts electricity by changing into ions when melted or dissolved into a solution
- 16. The abundance of a constituent divided by the total volume of a mixture
- 17. polymer-manmade out of raw materials that are found in nature.
- 20. or relating to the emission of ionizing radiation or particles
- 21. substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- 22. reaction- A process that involves the rearrangement of the molecular or ionic structure of a substance
- 23. compound of hydrogen and carbon
- 24. figure expressing the acidity or alkalinity of a solution.
- 25. production of chemical compounds by reaction from simpler materials.
- 27. minor component in a solution, dissolved in the solvent.
- 28. energy- the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction
- 31. Reaction- a chemical reaction that is accompanied by the absorption of heat, or an organism that generates heat to maintain its temperature.
- 32. a homogeneous mixture composed of two or more substances
- 35. branch of chemistry or biochemistry concerned with measuring and studying the rates of reactions.
- 36. basic unit of a chemical element.
- 37. atom or molecule with a net electric charge due to the loss or gain of one or more electrons
- 38. ionic compound that results from the neutralization reaction of an acid and a base
Down
- 1. bonding- the complete transfer of valence electrons between atoms
- 2. bonding- A chemical bond where atoms share electron pairs.
- 4. a chemical reaction that releases energy by light or heat
- 5. a substance that takes part in and undergoes change during a reaction.
- 6. A process in which atoms of the same or different elements rearrange themselves to form a new substance
- 8. process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions
- 10. changing of one chemical element into anotherccc
- 14. instrument for detecting and measuring electricity, especially as an indication of the ionization of air by radioactivity
- 18. particles-a helium nucleus emitted by some radioactive substances, originally regarded as a ray.
- 19. group of atoms bonded together, representing the smallest fundamental unit of a chemical compound
- 26. to dissolve other substances
- 29. chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent
- 30. molecule that can be bonded to other identical molecules to form a polymer.
- 33. the process of purification of a substance or a form.
- 34. a quantity collected from a sample or batch of a substance in a fractionating separation process