3. Write balanced chemical equations for the following chemical reactions. a. Lime (calcium oxide) reacts with water and produces slaked lime (calcium hydroxide). Ca(OH)2 + Cao CaO(S) + H2O(1) --> Ca(OH)2 b. A pure copper wire placed in an aqueous solution of silver nitrate produces a blue solution of copper (II) nitrate and powdered silver metal. Cu(s) + 2 Ag NO3 (AQ)-->Cu (N03)2 (aq) + 2Ag(s) c. Copper (II) oxide when heated in the presence of methane (CH4) gas produces copper, carbon dioxide and water vapor. d. Incomplete combustion of fuel in a butane (C4H10) gas stove produces carbon monoxide and water vapors. (Note: Carbon monoxide is a colorless, odorless, and highly poisonous gas known as the 'silent killer'. This gas is produced from an incomplete combustion of hydrocarbons such as natural gas, propane, heating oil etc.) C4 H10(g) 02(G)-->4CO2(g) +5H20(g) e. Sodium metal reacts rapidly with water to form sodium hydroxide and hydrogen gas.
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.
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