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 degree that two liquids can mix together






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






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






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






5. 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






6. Metals that have low melting points






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






8. Distilled water - which has the ph level of 7






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






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






11. Positive charged ions






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






13. The number of protons/electrons within an atom






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






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






16. 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






17. Measures of an attraction that an atom has ffor electrons in a chemical bond






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






19. 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






20. Water






21. The different forms of an electron based on their neutrons






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






23. An atom that has an electrical charge






24. Ammonia






25. Anything that has mass and takes up space






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






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






28. Hydrocarbons that include carbon - carbon triple bonds






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






30. The outer electron in a shell






31. Metals like calcium that produce alkaline solutions when combined with water. Part of Group IIA. Have two electrons in their outer shells






32. The conversion of a gas back into a liquid






33. Components made up of a combination of atoms






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






35. Radioactive decay that leads to the emission of gamma particles






36. Hydrochloric acid






37. Sodium






38. Gases like neon and helium that do not interact with other elements because they havea complete valence shell






39. The conversion of liquid into a gas






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






41. 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






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






43. Metals that conduct electricity






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






45. Organic compounds that contain nitrogen - including protein






46. Hydrocarbons that involve carbon - carbon double bonds






47. The transition from a gas into a solid






48. Negative charged ions






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






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