Concept explainers
(a)
Interpretation: The stable substance in each given pair is to be stated.
Concept introduction: Stability of compound depends on the size of atom involved in the compound formation. The small sized atom makes the compound less stable as compared to large sized atom.
(b)
Interpretation: The stable substance in each given pair is to be stated.
Concept introduction: Stability of compound depends on the size of atom involved in the compound formation. The small sized atom makes the compound less stable as compared to large sized atom.
(c)
Interpretation: The stable substance in each given pair is to be stated.
Concept introduction: Stability of compound depends on the size of atom involved in the compound formation. The small sized atom makes the compound less stable as compared to large sized atom.
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Chemistry with Access Code, Hybrid Edition
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- Predict which will be more stable, [CrO4]2- or [WO4]2-, and explain.arrow_forwardWhat is the likelihood that hydrogen (H2) will become a widely used fuel and that the hydrogen economy will become a reality? In particular, what are the advantages and disadvantages of H2 as a fuel? What would be necessary for a significant conversion to a hydrogen economy?arrow_forwardWhen potassium and oxygen react, one of the products obtained is potassium superoxide, KO2. The anion in this compound is the superoxide ion. O2. Write the electron configuration for this ion in molecular orbital terms, and then compare it with the electron configuration of the O2 molecule with respect to the following criteria: (a) magnetic character (b) net number of and bonds (c) bond order (d) oxygenoxygen bond length A closed-circuit breathing apparatus that generates its own oxygen. One source of oxygen is potassium superoxide (KO2). Both carbon dioxide and moisture exhaled by the wearer into the breathing tube react with the KO2 to generate oxygen.arrow_forward
- Why is SnCl4 not classified as a salt?arrow_forwardExplain why the bond between B and Cl in the molecule BCl3 is shorter than would be expected for a single B—Cl bond.arrow_forwardGiven pieces of Zn and Al, and amounts of ZnSO4 and Al(SO4)3 solutions, what combinations of these four substances would you make to illustrate that Zn is less reactive than AL?arrow_forward
- A proposed two-step mechanism for the destruction of ozone in the upper atmosphere is a. What is the overall balanced equation for the ozone destruction reaction? b. Which species is a catalyst? c. Which species is an intermediate? d. What is the rate law derived from this mechanism if the first step in the mechanism is slow and the second step is fast? e. One of the concerns about the use of Freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the reaction Chlorine atoms also can act as a catalyst for the destruction of ozone. The first step of a proposed mechanism for chlorine-catalyzed ozone destruction is Cl (g) + O3 (g) → ClO (g) + O2 (g) Slow Assuming a two-step mechanism, propose the second step in the mechanism and give the overall balanced equation.arrow_forwardBriefly explain (in one or two sentences) the following observations: a. TIH is stable but TIH3 is not. b. SiF4 reacts with water but CF4 does not. c. HCl can be formed from H₂ and Cl₂ but HI cannot be synthesized from H₂ and I2. SiH4 rapidly reacts with water to produce H₂ and SiO2, in a manner very similar to the reaction between SiCl4 and H₂O. a. Write balanced equation for the reaction between SiH4 and H₂O that produces SiO2 and H₂. b. Is this a redox or acid-base reaction? c. Draw a clear mechanism of the first step in the reaction showing clear structures of reactants, intermediates and the products.arrow_forwardUsing the thermodynamic tables find the enthalpy of formation for H2O (l). a. – 1.29 x 103 kJ/mol b. – 5.16 x 103 kJ/mol c. – 1219.471 kJ/mol d. none of these e. – 187.8 kJ/mol f. + 314.42 kJ/mol g. – 285.840 kJ/mol h. – 241.826 kJ/molarrow_forward
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