group of four reactions‚ Iron phosphate and calcium phosphate are the two products that are insoluble in water. In the three of the four reactions a cloudy white or yellow formed. This indicated the formation of a precipitate‚ caused by the generally insoluble phosphate anion. Potassium chloride‚ Iron nitrate‚ and potassium sulfate where the products which were soluble in water. With these products there was no evidence of a precipitate forming. 2. Based on the results from reactions A and B
Premium Ion Potassium Sodium
Solubility of CO2 in water Aim: To decarbonate a bottle of soft drink and find out the amount of CO2 in the drink. * Principle: The reaction between carbon dioxide and water is an example of an equilibrium reaction: Materials: * * 3 soft drink bottles (300ml) * 6g of salt (NaCl) * Triple beam balance scale * Thermometer * Digital scale * Watch glass * Electric hotplate Method: Standing up method 1. An unopened bottle of carbonated drink
Premium Carbon dioxide Water Carbonated water
first discovered in England during the year 1808 by Sir Humphry Davy. He was able to separate calcium into a pure metal by doing an electrolysis process on a mixture of lime HgO‚ which is mercuric oxide. However‚ Sir Humphry Davy was not able to do this until after he found out Berzelius and Pontin electrolysed lime into mercury which constructed calcium amalgam. Although he discovered calcium in 1808‚ calcium metal was not available in large amounts until the beginning of the twentieth century. Before
Premium Atom Chemistry Chemical element
Everyone is a traveler‚ carefully choosing which roads to follow on the map of life. There is never a straight path that leaves one with but a single direction in which to head. Robert Frost’s “The Road Not Taken” can be interpreted in many different ways. The shade of light in which the reader sees the poem depends upon her past‚ present‚ and the attitude with which she looks toward her future. In any case however‚ this poem clearly demonstrates Frost’s belief that it
Premium Choice Decision making software Decision theory
FRS 140 Investment Properties Definition Investment property is property (land or a building” or part of a building” or both) held (by the owner or by the lessee under a finance lease) to earn rentals or for capital appreciation or both‚ rather than for: (a) | use in the production or supply of goods or services or for administrative purposes; or | (b) | Sale in the ordinary course of business. | Objective The objective of this Standard is to prescribe the accounting treatment for investment
Premium Property Expense Lease
Avon Products‚ Inc. was a leading global cosmetics company‚ with over $8 billion in annual revenue in 2005. As the world’s largest direct seller‚ the company marketed to women in 143 countries via five (5) million independent Avon Sales Representatives. Avon product lines included numerous popular brand names‚ and an extensive line of costume jewelry and clothing. Although revenues increased in 2003‚ 2004 and 2005‚ Avon’s net income was $848 million in 2005. The company met with stiff competition
Premium Developmental psychology Human resource management Talent management
company’s share prices weren’t very high‚ they maintained a lower base. But from October 22 share prices have started rising (as shown by the black line) because the company had reported about their leadership performance with 50 % net profit in quarter 2‚ ’08-09 on the day before. This share price increase continued in the year 2009 also‚ and from there on‚ in 2010 they have been increasing at steady rate. (Adapted from moneycontrol.com‚ 2011) However with the passage of years‚ the company has seen
Premium Stock market
Kaival Patel Lit 088 Self and Society in Chinese Literature Zuyan Zhou December 4‚ 12 Change is Constant In a 1999 Chinese comedy-drama film‚ Shower‚ the director Zhang Yang explores the many facets of the Chinese economic revolution. The story follows a father and his two sons through the economic ups and downs facing China. The aging father‚ Mr. Liu‚ and his mentally challenged younger son‚ Er-Ming‚ operate a bathhouse in Shenzhen‚ China. After receiving a fabricated card in the mail‚
Premium China
History of Calcium- Calcium is a very interesting element that has a lot to tell about itself. There is much history to be learned about calcium. Calcium was actually discovered by Humphry Davy in 1808. Calcium’s name happens to come from the latin ‘calx’ meaning lime. Lime (calcium oxide‚ CaO) was a useful material that was created by heating limestone. Before the discovery of calcium‚ a man named Antoine Lavoisier classified the lime as “earth” because it was very difficult‚ almost
Premium Water Chemistry Acid
Rate of Decomposition of Calcium Carbonate Theory Calcium carbonate‚ CaCO3‚is one of the most abundant minerals on the Earth. More than 4% of the Earth’s crust is composed of calcium carbonate. It is a major component in limestone‚ marble‚ seashells‚ bedrock‚ etc. Limestone and marble have been among the most widely used building materials for more than 5 000 years‚ from the pyramids in Egypt to the Parthenon in Greece and the Taj Mahal in India. In many places‚ limestone is also the foundation
Premium Chemical reaction Carbon dioxide Reaction rate