Test your basic knowledge |

CSET Science: Chemistry

Subjects : cset, science, chemistry
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The different forms of an electron based on their neutrons






2. Small component of an atom that has a positive electrical charge






3. The conversion of a gas back into a liquid






4. The way a periodic table is ordered in columns based on how many electrons are in the outer shell






5. A chemical bond in which two atoms share electrons like H2.






6. Hydrocarbons that include carbon - carbon triple bonds






7. Metals that have low melting points






8. The chemical potential for hydrogen - which determines whether or not a chemical is an acid or base






9. Water






10. When two reactants form one product - like sulfur dioxide by burning sulfur in the air






11. The size of an atom that decreases across a period. Within the group - it increases from top to bottom






12. Hydrocarbons taht also include oxygen - like alcohols - carbohydrates






13. The degree that two liquids can mix together






14. The idea that 1. gaes are made up of particles - 2. gas atoms do not exhibit intermolecular attraactions or repulsions - 3. gas particles are in continuous random motions - 4. collisiosn between two gas particles is not dissipated - and 5. the averag






15. Negative charged ions






16. When two different substances combine to form a new substance or when a substance breaks down to form two different substance.






17. The center of an atom - which contains protons and neutrons






18. 1.66 x 10^-24 g






19. The conversion of liquid into a gas






20. A specific type of double deplacement when an acid reactts with a base to form salt and water






21. Small component of an atom that has no electrical charge






22. Radioactive decay in which half of a sample decays






23. The transition from a gas into a solid






24. The number of protons/electrons within an atom






25. Hydrocarbons that involve carbon - carbon double bonds






26. Part of group VIIA and are highly reactive nonmetals. They have seven valence electrons and range from bein ggaseous to solids. Includes fluoride - chloride - and iodine






27. The process in which a solid can become a gas - like dry ice






28. Sodium






29. When elements from two different compounds didsplace each other to form new compounds - like when solutions of CaCl and HgNi combine to form insoluble HgCl and CaNi






30. Radioactive decay in which a beta particle - aka an electron - is emitted






31. Radioactive decay that leads to an emission of Helium -4 ion






32. Energy released when an electron is added to a gaseous atom






33. Metals mostly found in the middle of the table that are small and shiny. They are hard and have high melting and boiling points






34. Chemicals like sodium that react with water to make alkaline solutions. Part of Group IA. They easily lose their valence electrons to become +1






35. The decay of a nuclei which results in the emission of certain particlces






36. When a compound breaks down into two or more substances by heating - like the break down of mercury oxide






37. Hydrocarbons that have single bonds with a prefix to show the number of carbon atoms - like methane - ethane - propane - butane - pentane - and hexane






38. Occurs when one compound is replaced by an atom of another element like zinc metal






39. The outer electron in a shell






40. Move around the nucleus at the speed of light and have a negative charge






41. A chemical that is sour and stings and receives positive charged atoms when they are dissolved in water






42. Organic compounds that contain nitrogen - including protein






43. The bond formed when an anion and a cation unite and form a chemical reaction






44. Ammonia






45. The smallest form of a particle






46. Components made up of a combination of atoms






47. The energy required to completely remove an electron from an atom or an ion to make it ositive. the energy increases from left to right as the atomic radius diecreases






48. Substances that create hydroxide ions - have a pH level higher than 7 - and can conduct electricity






49. Metals that conduct electricity






50. An atom that has an electrical charge