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. Metals that have a variety of property that include carbon - nitrogen and oxygen vital to the earth






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






3. The smallest form of a particle






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






5. Sodium






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






7. 1.66 x 10^-24 g






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






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






10. Carbons that consist of both hydrogen and carbon atoms and can be alkanes - alkenes - akynes - adn aromatics






11. 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






12. The degree that two liquids can mix together






13. The process of balancing chemical equations






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






15. The outer electron in a shell






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






17. Radioactive decay in which half of a sample decays






18. Anything that has mass and takes up space






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






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






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






22. The transition from a gas into a solid






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






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






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






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






27. Positive charged ions






28. Water






29. The way of ordering the periodic table based on how many protons there are






30. The number of protons/electrons within an atom






31. An atom that has an electrical charge






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






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. Hydrocarbons that include carbon - carbon triple bonds






35. Hydrocarbons that involve carbon - carbon double bonds






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






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






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






39. 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






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






41. Negative charged ions






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






43. Metals that have low melting points






44. Ammonia






45. Hydrochloric acid






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






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






48. Components made up of a combination of atoms






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






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