Online Activity Example

Online Activity Example Online Activity – Coursework Example Macro and Micro Economics Microeconomic analysis rests of the concepts of supply and demand for goods and ad services in the market,which later affect the household individuals and other small firms. People typically understand the two words as they get commonly used in everyday conversation but often not in the precise way economists understand the term. Some students often confuse a change as well as a shift in demand as well as a shift in the quantity demanded. Demand can get said as the quantity of goods and services that particular consumers of a given locality are willing and able to buy, at the prevailing price, within a given period. Supply refers to the amount of goods and services that suppliers find themselves able to export the market, at the current price, within a given time (Estrada, 2008). The demand relates to the buyers while supply purely involves the producers, bringing their produce to the market, manufacturers or general companies.In differentiating the two furt her, causes and changes in demand get caused by such factors as price, consumer fashion, and tastes. If the price of a good increases, its demand reduces unless it’s a good having abnormal demand curve such as goods of ostentation, inferior and Giffen goods, and vice versa (Estrada, 2008). For the case of supply, an increase in the price of a product may trigger an increase in its supply. When the price goes up, producers, among other suppliers will get willing to supply more since they will realize more revenue, hence profitability in their productions (Lapide, 2013).There is a clear distinction between change or movement in demand and shift in demand. Changes in demand get caused by non-price factors such as consumer tastes, preference and fashions, demographic patterns, culture among others. On the other hand, change or movement in demand is caused only by price (Lapide, 2013). ReferencesEstrada, M. A. R. (2008). Demand and supply surfaces.  Malaysian Journal of Economic Studies,  45(1), 71-77. Retrieved from http://search.proquest.com/docview/201592759?accountid=45049 Lapide, L. (2013). Supplys demand-shaping roles.  The Journal of Business Forecasting,  32(3), 18-21. Retrieved from http://search.proquest.com/docview/1459714351?accountid=45049

Ionic Compound Properties, Explained

Ionic Compound Properties, Explained An ionic bond is formed when there is a large electronegativity difference between the elements participating in the bond. The greater the difference, the stronger the attraction between the positive ion (cation) and negative ion (anion). Properties Shared by Ionic Compounds The properties of ionic compounds relate to how strongly the positive and negative ions attract each other in an  ionic bond. Iconic compounds also exhibit the following properties: They form crystals.Ionic compounds form crystal lattices rather than amorphous solids. Although molecular compounds form crystals, they frequently take other forms plus molecular crystals typically are softer than ionic crystals.  At an atomic level, an ionic crystal is a regular structure, with the cation and anion alternating with each other and forming a three-dimensional structure based largely on the smaller ion evenly filling in the gaps between the larger ion.They have high melting points and high boiling points.High temperatures are required to overcome the attraction between the positive and negative ions in ionic compounds. Therefore, a lot of energy is required to melt ionic compounds or cause them to boil.They have higher enthalpies of fusion and vaporization than molecular compounds.Just as ionic compounds have high melting and boiling points, they usually have enthalpies of fusion and vaporization that can be 10 to 100 times higher than those of most molecular compoun ds. The enthalpy of fusion is the heat required melt a single mole of a solid under constant pressure. The enthalpy of vaporization is the heat required for vaporize one mole of a liquid compound under constant pressure. Theyre hard and brittle.Ionic crystals are hard because the positive and negative ions are strongly attracted to each other and difficult to separate, however, when pressure is applied to an ionic crystal then ions of like charge may be forced closer to each other. The electrostatic repulsion can be enough to split the crystal, which is why ionic solids also are brittle.They conduct electricity when they are dissolved in water.When ionic compounds are dissolved in water the dissociated ions are free to conduct electric charge through the solution. Molten ionic compounds (molten salts) also conduct electricity.Theyre good insulators.Although they conduct in molten form or in aqueous solution, ionic solids do not conduct electricity very well because the ions are bound so tightly to each other. A Common Household Example   A familiar example of an ionic compound is table salt or sodium chloride. Salt has a high melting point of  800 ºC. While a salt crystal is an electric insulator, saline solutions (salt dissolved in water) readily conduct electricity. Molten salt is also a conductor. If you examine salt crystals with a magnifying glass, you can observe the regular cubic structure resulting from the crystal lattice. Salt crystals are hard, yet brittle its easy to crush a crystal. Although dissolved salt has a recognizable flavor, you dont smell solid salt because it has a low vapor pressure.