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Chemistry Quiz 14 (60 MCQs)

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1. Which of the following is the CORRECT chemical name of Li2S?
2. Semiconductors are elements that
3. Which phrase best describes atoms?
4. The tendency of an atom to prefer to have 8 electrons in the valence shell is known as
5. Which of the folowing concentration term is affected by temperature
6. Which type of reaction is:C7H16 + 10 O2 $\rightarrow$ 7 CO2 + 8 H2O
7. What fundamental quantities are needed to determine density?
8. Gibbs free energy is denoted by what letter which this energy is a combination of enthalpy and entropy in a single value.
9. ..... protons ..... neutrons ..... electrons
10. How many total ELEMENTS are in the following compound:2C2H4O2
11. The symbol for Fluorine
12. Which one is an organic Acid?
13. What are the building blocks of MATTER?
14. An atom of carbon has 6 protons and 7 neutrons in its nucleus. If the atom is neutral, how many electrons does it have?
15. The aqueous solution of which acids is called Vinegar?
16. An orbital can at most hold how many electrons?
17. In the chemical equation below, what substance(s) is/are the product(s) of the reaction:Na + Cl2 $\rightarrow$NaCl
18. Using the following equation:Fe2O3(s) + 3H2(g) $\rightarrow$ 2Fe(s) + 3H2O(l)How many moles of iron can be made from 6 moles H2?
19. The acid generally stored in batteries is
20. Which type of reaction is:4 (NH4)3PO4 + 3 Pb(NO3)4 $\rightarrow$ 12 NH4NO3 + Pb3(PO4)4
21. Which chemical reaction shows photosynthesis?
22. Who discovered protons?
23. Which type of bonding is present within organic molecules?
24. The central region of an atom where its neutrons and protons are is its
25. Neutrons have a ..... charge.
26. The most electronegative element among the following is
27. Atoms tend to be stable and nonreactive if they have ..... valence electrons.
28. The most important element in organic chemistry. It has 4 valence electrons that can form 4 stable covalent bonds.
29. What make atoms react with each other and create bonds?
30. Which type of reaction is:2 K + MgBr2 $\rightarrow$ 2 KBr + Mg
31. One or two letter character that is used to identify an element
32. When you mix salad oil and water they immediately separate because
33. Which of the following refers to the attraction between ionic and polar molecules?
34. What type of chemical bond is formed between two atoms when electrons are shared?
35. Margaret found an unknown object on the ground while walking on the beach. She discovered that it shatters easily, it does not conduct heat or electricity, and is not shiny. What type of object did she find?
36. Type of intermolecular force present in HF.
37. How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide?
38. Which of the following is produced during the formation of photochemical smog?
39. The energy of the moving particles of a substance is
40. One of the properties all acids share is
41. If the number of protons equal the number of ....., the atom will have no charge
42. Molar mass is in units of .....
43. The first energy orbital of an atom can hold up to ..... electrons.
44. Isotopes are atoms of the same element that have different
45. What two subatomic particles are found in the nucleus?
46. How many oxygen atoms are in the chemical formula (2Fe2O3)?
47. What is the electron configuration of Sulfur using noble gas method?
48. When an atom loses a valence electron, it becomes a(n) ..... ion.
49. Which subatomic particles contribute the most to the mass of an atom?
50. Which of the homologous series below does not contain C=O?
51. Building blocks of polymers.
52. The following laboratory glass wares are used for measuring liquid, which is best to use in getting density? The following laboratory glass wares are used for measuring liquid, which is best to use in getting density?
53. A substances that dissolves in a liquid
54. The number of moles of solute present in 1 kg of a solvent is called its
55. An atom that has lost an electron and now has a positive charge is an ion called
56. How many atoms of lead are in one mole of lead?
57. Created the Planetary Model of the atom
58. A mixtures that has uniform composition
59. What type of protein promotes catalyze reactions such as synthesis, decomposition, energy productions and/or cellular reproduction?
60. As the concentration of hydrogen ions (H+) increases, the
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