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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 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






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






3. Organic compounds that contain nitrogen - including protein






4. The outer electron in a shell






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






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






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






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






9. Positive charged ions






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






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






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






13. The number of protons/electrons within an atom






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






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






16. Hydrocarbons that include carbon - carbon triple bonds






17. Components made up of a combination of atoms






18. The smallest form of a particle






19. Water






20. An atom that has an electrical charge






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






22. 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






23. Metals that have low melting points






24. The conversion of a gas back into a liquid






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






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






27. Anything that has mass and takes up space






28. Hydrochloric acid






29. 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






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






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






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






33. Negative charged ions






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






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






36. 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






37. Sodium






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






39. The process of balancing chemical equations






40. The degree that two liquids can mix together






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






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






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






44. 1.66 x 10^-24 g






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






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






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






48. Ammonia






49. Radioactive decay in which half of a sample decays






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