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2) What is the correct electron configuration for the $2 ion? Sign in | View a. 1s'2s?2p63s? b. 1s'2s'2p$3s'3p C. 1s?2s?2p$3s23p* d. 15 2s 2p63s23p6 3) Which of the following species will be Diamagnetic? (Multiple answers) Talking: a. Br b. As c. Mg" d. Ag' e. Na 35 mins 4) The chemical formula for calcium permanganate is: a. Ca(Mn04)z b. CaMnos c. CazMn204 d. Caz(Mn04)z End: 12: 4bp 5) An ionic compound has the following formula MOs. If the metal ion (M) contains 18 electrons, what is its identity? a. Ar b. Cr C. Al d. Fe e. Ga 6) Magnesium metal reacts with water to produce magnesium hydroxide and hydrogen gas. What is the coefficient of water when the reaction is properly balanced? a. 0 b. 1 c. 2 d. 3 e. 4 7) How many electron pairs (bonds lone pairs) should be found in the correctly drawn Lewis Structure for chlorate, (CIO;)" a. 13 b. 12 c. 10 d. 9 8) Diphosphorous pentoxide is often used as a drying reagent - it very effectively removes water by reacting with it - If I react 7527 dozen molecules of diphosphorous pentoxide, how many molecules of water can be absorbed? P2Os (s) + 3H20 (1) - 2H;PO4(aq). a. 15054 b. 7527 c. 22581 d. 2509 9) Please balance the following reaction, and indicate the total sum of the coefficients: CzHs + Oz(g) Coz(g) + HzO(1) a. 19 b. 18 c. 11 d. 10 e. 21 10) If heat is listed as a product in a chemical reaction, which of the following is true about the change in enthalpy for the reaction? a. AH0 d. Not enough information to tell. 11) What is the molar mass of sodium chromate? A). 75.01 g/mol B). 261.97 g/mol C). 139.01 g/mol D). 161.97 g/mol 12) How many atoms are there in 36.19 grams of lead (II) nitrate? A). 4.2 x 1024 B). 5.9 x 1023 C). 2.2 x 1025 D). 7.8 x 1024 13) For the unbalanced equation: NH; + 02 - NO + H20. How many grams of water can be produced from 3.9 moles of NH3? A). 105.3 g B). 93 g C). 72 g D). 81 g 14) According to the following balanced chemical reaction, 4NH; + 502- 4NO +6H20, how many moles of water can theoretically be produced by reacting 5.9 moles of ammonia with 14.7 moles of oxygen? A). 6n B). 8.85 n C). 14.7 n D). 17.6n :0:" 15) What are the formal charges on the atoms that are labeled a, b c (image on right)? :0 :" A). 0, +1, 0 B). 0, -1, 0 C). 0, 0, 0 D). 0, +1, +1 16) What are the electronic and molecular geometries for IF4, respectively? a. Trigonal bipyramidal, T-shaped b. Trigonal bipyramidal, seesaw c. Octahedral, square pyramidal d. Tetrahedron, tetrahedr e. Octahedral, square planar 17) What kind of intermolecular forces can be exhibited by the following molecules (below)? A). Hydrogen bonds, dipole-dipole and London Dispersion forces HJC-CH2-CHS H-F HyC-CH2-OH 28 17 ~ + ...) Audio Video Participants Chat React Share More Leave