5. Write explanation in ONE sentence only. a) H2Te > H2Se > H2S > H2O acid strength order b) A. CO2 B. CaO C. SO2 D. H2O E. NO2 only basic oxide or oxide that forms a base on dissolving in water. c) HPO42– < H2PO4– < H3PO4 acid strength order
Electronic Effects
The effect of electrons that are located in the chemical bonds within the atoms of the molecule is termed an electronic effect. The electronic effect is also explained as the effect through which the reactivity of the compound in one portion is controlled by the electron repulsion or attraction producing in another portion of the molecule.
Drawing Resonance Forms
In organic chemistry, resonance may be a mental exercise that illustrates the delocalization of electrons inside molecules within the valence bond theory of octet bonding. It entails creating several Lewis structures that, when combined, reflect the molecule's entire electronic structure. One Lewis diagram cannot explain the bonding (lone pair, double bond, octet) elaborately. A hybrid describes a combination of possible resonance structures that represents the entire delocalization of electrons within the molecule.
Using Molecular Structure To Predict Equilibrium
Equilibrium does not always imply an equal presence of reactants and products. This signifies that the reaction reaches a point when reactant and product quantities remain constant as the rate of forward and backward reaction is the same. Molecular structures of various compounds can help in predicting equilibrium.
5. Write explanation in ONE sentence only.
a) H2Te > H2Se > H2S > H2O acid strength order
b) A. CO2 B. CaO C. SO2 D. H2O E. NO2 only basic oxide or oxide that forms a base on dissolving
in water.
c) HPO42– < H2PO4– < H3PO4 acid strength order
6. Which of the following solutes would be expected to provide the most particles and to
freeze at the lowest temperature? Explain in a maximum of 2-3 sentences.
i) 0.10 mol HClO ii) 0.10 mol HClO3 iii) 0.10 mol HClO2 iv) 0.10 mol HClO4
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