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Chemistry Quiz 14 (60 MCQs)

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1. What are the 3 fields of study?
2. Use the periodic table to determine the Chemical symbol for Iron.
3. Salt dissolved in water is an example of:
4. What is the number that gives you the element and the number of protons contained in each elemental atom?
5. ..... occurs when two or more molecules interact forming new molecules.
6. What type of elements form covalent bonds?
7. Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.
8. States that in any physical or chemical reaction, mass is conserved. It can be changed from one form to another, but cannot be created or destroyed.
9. During Photosynthesis energy is absorbed. What kind of reaction is it?
10. Which of the following terms identifies the change from a liquid to gas?
11. An element contains
12. How many branches of chemistry are there?
13. If an element is shiny, malleable, and a good conductor, you would be looking for a .....
14. When two or more elements join together chemically,
15. Which branch of chemistry would take results of an experiment and determine what the results would be at different conditions?
16. ..... is the branch of chemistry that would research new medicines and how it reacts in the body.
17. Most of the mass of an atom is found in the .....
18. How many nitrogen atoms in Mg(NO3)2
19. An agriculture class intends to find out why their garden isn't cooperating right. What type of research is used?
20. What cannot be broken down into other substances by physical or chemical methods?
21. Why is carbon able form long chains?
22. Which compound could rotate the plane of polarization of polarized light?
23. The study of substances and processes occurring in living things.
24. What kind of substance is composed of two or more elements that are chemically combined?
25. Atoms of the same element that differ in mass.
26. These are types of wastewater except
27. In a chemical formula, the total positive charge and negative charge must add up to equal .....
28. Identifies an unknown substance by determining what its made of.
29. What group of biomolecules contain long hydrocarbon chains and are considered nonpolar?
30. Process from solid to gas.
31. $ Mg\left(CN\right)+\left(NH_4\right)Cl$ How would you rewrite this equation to balnce it.
32. A judgment based upon the results of an experiment is a .....
33. The study of compounds that do not contain carbon.
34. A pH of 14 is a .....
35. During a phase change, the temperature
36. Which branch of chemistry would study the heat given off when a chemical mixture called thermite burns?
37. The ..... in a formula tells the number of atoms of each element present.
38. Ionic Bonding involves .....
39. The formula of methane is CH4. Which of these is true?
40. An $ ionic\ compound$ has ..... charge.
41. What is the correct name for the following compound? Al2(SO4)3
42. A substance containing atoms of two or more different elements chemically bonded together
43. How many Elements are in this compound? CuSO4
44. What is Polymer?
45. What is the smallest unit of matter that cannot be broken down by chemical means?
46. What is the study of heat changes that accompany chemical reactions and phase changes?
47. The chemical formulafor table salt is NaCl. Which of thefollowing explains what that means?
48. Combination of two or more substances that are not chemically combined.
49. It is one of the frontiers that the chemists are currently exploring in relation to the upgrade and advancement of different items that profoundly improved the quality of our lives.
50. How many meters are in 680 nm
51. What's an atom with an electric charge?
52. Group of elements whose ending e-configuration is p2. 4 electrons in outer shell. Made up of a nonmetal, metalloids and metals.
53. Carbon containing compounds such as $ CO_2^{ }$ & $ bicarbonates$ are studied in .....
54. Which property of water is important to the survival of aquatic organisms during the winter months?
55. Most of the mass of an atom is contained here.
56. The symbol and valency of ammonium is
57. The life cycle of a product refers to .....
58. What do we call the rows of the Periodic Table
59. Studies chemicals, matter and its properties, and atoms in order to understand how elements join together to form different substances.
60. Those are an example of synthetic rubber, except
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