[CHM113] 113DQ8

[CHM113] 113DQ8 - Discussion Quiz 8 (10 pts) Sections AA/AB...

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Unformatted text preview: Discussion Quiz 8 (10 pts) Sections AA/AB Name: ____________________ 1. Indicate which of the following are the properties of metals and nonmetals (4 pts) a) Oxides form ionic compounds b) Brittle c) Form anions d) Form cations e) Low ionization energies f) Lustrous g) Nonlustrous h) Poor conductors of heat and electricity i) Very high negative electron affinities. j) Form acids in aqueous solutions 2. Write a balanced reaction when aluminum (metal) reacts with chlorine (gas). Which is oxidized and which is reduced? (3 pts) 3. Write the name of Hg. Is it a gas/solid/ liquid at room temperature? (2pts) 4. Name any one acid and a compound of Cu that would be used in Investigation 20. (1 pt) Discussion Quiz 8 (10 pts) Sections AA/AB Name:___Answers__________ 1. Indicate which of the following are the properties of metals and nonmetals (4 pts) a) Oxides form ionic compounds b) Brittle c) Form anions d) Form cations e) Low ionization energies f) Lustrous g) Nonlustrous h) Poor conductors of heat and electricity i) Very high negative electron affinities. j) Form acids in aqueous solutions 2. Write a balanced reaction when aluminum (metal) reacts with chlorine (gas). Which is oxidized and which is reduced? (3 pts) 2Al + 3Cl2 2AlCl3 (1 point each) Al is oxidized Cl is reduced 3. Write the name of Hg. Is it a gas/solid/ liquid at room temperature? (2pts) mercury Liquid 4. Name any one acid and a compound of Cu that would be used in Investigation 20. (1 pt) H2SO4, HCl, HNO3, CH3COOH Cu ore, Cu(NO3)2.3H2O Discussion Quiz 8 (10 pts) Sections AC/AD Name: ____________________ Section: __________ 1. What is the shielding factor for the valence electrons in Mg? Also calculate Zeff. If actual Zeff is 3.33, so is your calculated Zeff greater than this value, why? (4 pts) 2. Circle the one with larger radius. (2 pts) Li O O2 S2 Explain the metallic behavior as we move across a period (left to right) (1 pt) 3. The acronym LASER stands for ___________________________________? (1pt) 4. Name any two acids that would be used in Investigation 20. (2 pts) Discussion Quiz 8 (10 pts) Sections AC/AD Name:___Answers__________ 1. What is the shielding factor for the valence electrons in Mg? Also calculate Zeff. If actual Zeff is 3.33, so is your calculated Zeff greater than this value, why? (4 pts) S=10 (1pt) Zeff= ZS= 1210=2 (1pt) Actual Zeff is greater than calculated value, (1 pt) as the valence electrons experience a larger positive force when close to nucleus according to the probability distribution chart. (1 pt) Any version of the answer is OK 2. Circle the one with larger radius. (2 pt) Li O O2 S2 Explain the metallic behavior as we move across a period (left to right) (1 pt) Across a period, decreases. 3. The acronym LASER stands for ___________________________________? (1pt) Light Amplification by Simulated Emission of Radiation. 4. Name any two acids that would be used in Investigation 20. (2 pts) HNO3, H2SO4, CH3COOH, HCl. Discussion Quiz 8 (10 pts) Sections AE/AF Name: ____________________ Section: __________ 1. What is the shielding factor for the valence electrons in K? Also calculate Zeff. (2 pts) 2. Circle the one with larger radius. (2 pts) a) Cl Cl1 b) Na Na+1 Explain how the atomic radius changes as we move across a period (left to right) (1 pt) 3. The acronym LASER stands for ___________________________________? (1pt) 4. Name any one acid and a compound of Cu that would be used in Investigation 20. (2 pts) Discussion Quiz 8 (10 pts) Sections AE/AF Name:___Answers__________ 1. What is the shielding factor for the valence electrons in K? Also calculate Zeff. (2 pts) S= 18 Zeff= Z S= 1918= 1 2. Circle the one with larger radius. (2 pts) a) Cl Cl1 b) Na Na+1 Explain how the atomic radius changes as we move across a period (left to right) (1 pt) It decreases as we move from left to right across a period. 3. The acronym LASER stands for ___________________________________? (1pt) Light Amplification by Simulated Emission of Radiation. 4. Name any one acid and a compound of Cu that would be used in Investigation 20. (2 pts) HCl, H2SO4, HNO3, CH3COOH AND Cu(NO3)2.3H2O (as given in students' lab manual), Cu ore. Discussion Quiz 8 (10 pts) Sections AG Name: ____________________ 1. What is the shielding factor for the valence electrons in Na? Also calculate Zeff. Also, find out the shielding factor and Zeff for Ca.(4 pts) 2. Circle the one with larger radius. (1 pt) Cl Cl1 Circle the one with higher First Ionization Energy. (1 pt) Na O Circle the one with higher electro negativity. (1 pt) F I 3. Screening effect of valence electrons is ______________________ than the screening effect of core electrons. (1pt) 4. Name any one acid and a compound of Cu that would be used in Investigation 20. (2 pts) Discussion Quiz 8 (10 pts) Sections AG 1. What is the shielding factor for the valence electrons in Na? Also calculate Zeff. Also, find out the shielding factor and Zeff for Ca.(4 pts) Na: S=10, Zeff=1 (2 pts) Ca: S=18, Zeff=2 (2 pts) 2. Circle the one with larger radius. (1 pt) Cl Cl1 Circle the one with higher First Ionization Energy. (1 pt) Na O Circle the one with higher electro negativity. (1 pt) F I 3. Screening effect of valence electrons is ______________________ than the screening effect of core electrons. (1pt) Less significant 4. Name any one acid and a compound of Cu that would be used in Investigation 20. (2 pts) HCl, HNO3, H2SO4, CH3COOH Cu ore, Cu(NO3)2.3H2O (as per lab manual) Name:___Answers__________ Discussion Quiz 8 (10 pts) Sections AH Name: ____________________ 1. What is the shielding factor for the valence electrons in K? Also calculate Zeff. Also, find out the shielding factor and Zeff for Mg.(4 pts) 2. Circle the one with larger radius. (1 pt) Na Na+1 Circle the one with higher First Ionization Energy. (1 pt) Cl Br Circle the one with higher electro negativity. (1 pt) F H 3. Screening effect of valence electrons is ______________________ than the screening effect of core electrons. (1pt) 4. Name any two acids that would be used in Investigation 20. (2 pts) Discussion Quiz 8 (10 pts) Sections AH 1. What is the shielding factor for the valence electrons in K? Also calculate Zeff. Also, find out the shielding factor and Zeff for Mg.(4 pts) K: S=18, Zeff=1 Mg: S=10, Zeff=2 2. Circle the one with larger radius. (1 pt) Na Na+1 Circle the one with higher First Ionization Energy. (1 pt) Cl Br Circle the one with higher electro negativity. (1 pt) F H 3. Screening effect of valence electrons is ______________________ than the screening effect of core electrons. (1pt) Less significant 4. Name any two acids that would be used in Investigation 20. (2 pts) HCl, H2SO4, HNO3, CH3COOH Name:___Answers__________ ...
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This note was uploaded on 08/12/2008 for the course CHM 113 taught by Professor Anbar during the Spring '06 term at ASU.

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