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1) #1 * Approximately how many moles of Id are in 3

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1) #1 * Approximately how many moles of Id are in 3.21 moles Id₃Ia₂?
* indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		9.63
		0.0240
		429
		3.69

4 points   

QUESTION 2

1. * Approximately how many moles InFl₄ are 1.23 grams InFl₄?
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		0.0327
		121
		2.08x10-26
		0.0125

4 points   

QUESTION 3

1. What is the oxidizing agent in the (non-fictitious) reaction below?
   H₂ + Cu²⁺ → 2H⁺ + Cu

		H+
		Cu2+
		Cu
		H2

4 points   

QUESTION 5

1. Which of the following is not part of the kinetic molecular theory, which describes ideal gas behavior?

		gas particle movement depends on temperature
		gas particles are in constant motion
		gas particles are very far apart
		gas particles often stick to each other

4 points   

QUESTION 6

1. * Approximately what mass of De₂, in grams, is needed to form 1.23 grams AsDe by the reaction below?
   2As + De₂ → 2AsDe
   
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		0.762
		3.05
		1.52
		0.762

4 points   

QUESTION 7

1. * What category of reaction is the reaction below?
   NjNyi₂ → Nj + Ny₂

* indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		decomposition
		combination
		combustion
		none of the other answers are correct

4 points   

QUESTION 8

1. Which type of intermolecular force involves temporary dipoles from moving electron clouds that align similar to ions?

		hydrogen bonding
		ionic bonds
		dipole-dipole forces
		dispersion forces

4 points   

QUESTION 9

1. Which substance undergoes oxidation in the (non-fictitious) reaction below?
   2I^- + Br₂ → 2Br^- + I₂

		I2
		Br2
		Br-
		I-

4 points   

QUESTION 10

1. Which of the following is the definitive explanation of reduction in oxidation-reduction chemistry?

		reduction is the gain of hydrogen
		reduction is the gain of electrons
		reduction is the loss of electrons
		reduction is the loss of oxygen

4 points   

QUESTION 11

1. * In the reaction below,  is one of the reactants and  is one of the products. (Do not be concerned about subscripts in the answers.)
    In₂Aa₄ + 3Nd₂ → 2InNd₂ + 2Aa₂Nd
   
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

4 points   

QUESTION 12

1. Which of the following (not fictitious substances) have dispersion forces?
   NH₃, CH₃CO₂H, OF₂

		OF2
		NH3 and OF2
		NH3 and CH3CO2H
		all of these

4 points   

QUESTION 13

1. * A 1.23 mole sample of Gg(g) occupies 4.23 L at 3.45 atm. Approximately what is the volume, in liters, of the sample at 4.56 atm?
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		0.312
		1.77
		3.20
		5.59

4 points   

QUESTION 14

1. * Approximately how many moles of KsKy₂ are 3.21x10²⁴ KsKy₂ molecules?
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		3.43x1026
		2.04
		5.33
		1.93x1048

4 points   

QUESTION 15

1. * When the reaction below is balanced, what is the coefficient in front of Oh₂?
   CnOh₃(s) → Cn(s) + Oh₂(g) (not balanced)
   
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		6
		3
		2
		1

4 points   

QUESTION 16

1. * Approximately what is the mass, in grams, of 1.23 moles NcNd₂?
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		747
		5.28x10-3
		233
		286

4 points   

  

QUESTION 18

1. The following (non-fictitious) redox reaction is not balanced. What is the coefficient in front of Na when it is balanced?
   Au³⁺ + Na → Na⁺ + Au (not balanced)

		1
		6
		3
		2

4 points   

QUESTION 19

1. * Write two mole-mole conversion factors based on the reaction equation below.
   In₂Aa₄ + 3Nd₂ → 2InNd₂ + 2Aa₂Nd

* indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

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4 points   

QUESTION 20

1. * Approximately how many moles of Ok(g) are present if the sample fills a 25 L tank at 3.2 atm and 22°C?
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		0.30
		44
		3.3
		1.2

4 points   

QUESTION 21

1. * Approximately how many moles of Mi₂ form by the reaction of 1.23 moles Mi₄Wy by the reaction below?
   2Mi₄Wy → 3Mi₂ + 2MiWy

* indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		1.85
		4.82
		0.820
		3.70

4 points   

QUESTION 22

1. * A 3.21 mole sample of Ls(g) occupies 2.34 L. Approximately how many moles of Lsg) are present in a 3.45 L container under the same conditions?
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		1.81
		4.73
		2.18
		0.211

4 points   

QUESTION 23

1. * What category of reaction is the reaction below?
   Md + 2Nd → MdNd₂

* indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		none of the other answers are correct
		combustion
		combination
		decomposition

4 points   

QUESTION 24

1. Which of the following is most likely to be a reactant in a combustion reaction?

		N2
		CO2
		H2O
		O2

4 points   

QUESTION 25

1. * Which of the following half reactions is the complete version of the half reaction below? 
   Tx²⁺ → Tx⁶⁺ (incomplete)
   
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		3Tx2+ → Tx6+
		4e- + Tx6+ → Tx2+
		Tx2+→ Tx6+ + 4e-
		4e- + Tx2+ → Tx6+

4 points   

QUESTION 26

1. * Approximately what is the molar mass of CnOh₃?
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		90.56 g/mol
		271.68 g/mol
		251 g/mol
		267 g/mol

4 points   

QUESTION 27

1. * When the reaction equation below is balanced, how many Ia atoms are on both sides? 
   Id₃Ia₂ → Id₂ + Ia (not balanced)
   
   * indicates fictitious elements are in the question and the fictitious periodic table should be used if needed.

		4
		3
		6
		2

4 points   

QUESTION 28

1. Which of the following is most important in determining the boiling point of covalent molecules?

		intermolecular forces
		strength of ionic bonds
		network bonding
		strength of covalent bond