ICSE Class X Chapter 5 Hydrogen Chloride and Hydrochloric Acid Hydrogen chloride (HCl) : Formula : HCl Nature : Covalent. Molecular Mass : 36·5u [i.e. HCl = 1 + 35·5 = 36·5] Occurrence : (i) Present in gastric juices. (ii) Present in volcanic gases. Laboratory preparation of HCl gas : Hydrogen chloride gas is prepared in laboratory by heating conc. H2SO4 with NaCl. NaCl + H2SO4 Heat → NaCl + NaHSO4 Heat → NaHSO4 + HCl Sodium hydrogen sulphate Na2SO4 + HCl
Premium Hydrochloric acid Chlorine Hydrogen
hydrochloric acid to produce hydrogen gas. This is because magnesium is higher than hydrogen in the reactivity series. Therefore‚ when the two reactants are combined‚ a displacement reaction occus and the magnesium displaces the hydrogen‚ forming magnesium chloride and hydrogen gas. Mg (s) + 2HCl (aq) -> MgCl 2 (aq) + H 2 (g) Magnesium + Hydrochloric acid -> Magnesium Chloride + Hydrogen Aim The aim of this investigation is to observe the effect that the concentration
Premium Chemical reaction Hydrogen Chlorine
Flowers and Acid Call them freaks‚ the underground‚ the counterculture‚ flower children‚ or just simply hippies‚ they are all loose labels for the youth culture of the 60’s that transformed life in the West as we knew it‚ introducing the spirit of freedom‚ of hope‚ of happiness‚ of change‚ and of revolution (Miles 9). The years that made up the 1960’s were some of the most exciting and turbulent years in American history. The post World War II baby boomers grew up. A president and
Premium Feminism United States Beat Generation
analyze data and draw a conclusion. In this experiment I will find out that in a type of water the Alka-Seltzer will dissolve faster and slower. Alka-Seltzer is one of the world’s best known antacids. Its main function is to absorb excess stomach acid. II. MATERIALS: * Tap Water - Warm Water * Cold Water - Salt Water * Acidic Water -5 cups (250 mL of water in each cup) * A whole Alka-Seltzer tablet III. HYPOTHESIS: My hypothesis is that the Alka-Seltzer tablet
Premium Acid Gastric acid Water
Yasmeen Williams Mr. Phillips English IV 26 August 2013 Social Media Social media has different effects on people. Some are positive‚ some are negative. Teens that spend too much time on social networks like Facebook are more likely to show narcissistic tendencies and display signs of other behavioral problems‚ according to new psychological research. “While nobody can deny that Facebook has altered the landscape of social interaction‚ particularly among young people‚ we are just now starting
Premium Twitter Second language acquisition Social network service
could Plot There were a couple of wife and husband. They were American. They were traveling to the hotel which was surrounding by the public garden‚ war monument and the gravel path. They stayed in their room while it was raining. The American wife looked out the window and saw a cat trying to compact itself from the rain. She wanted that cat and said to his husband she would go to get it. Her husband didn’t stop her. When she went down and met the hotel owner‚ she liked him easily. She
Premium George Costanza Cat Marriage
! "! Educator Reviews of The Rains: Voices for American Liberty “Never has history been so lyrical! With the heart of a novelist‚ Sulayman Clark brings African American history to life in riveting‚ meticulously researched stories. This book is a must for college or high school teachers who want to insure that our young men and women appreciate and learn from the greatness that is their legacy.” Lisa Delpit‚ Professor Southern University “The Rains opens a rare and important vista on
Premium African American High school Historically black colleges and universities
humble person. The absence of his name from some of the imperial inscriptions put up on public buildings erected or renovated around the Roman Empire during his reign was very curious on Hadrian’s part. This humbleness‚ however‚ effectively confused historical analysts‚ and here’s why: During the reign of Augustus (27 B.C. to 14 A.D.)‚ Augustus had commissioned a rectangular sanctuary in the location of the where the Pantheon now stands. Agrippa‚ Augustus’ minister‚ designed the sanctuary. That building
Premium Pantheon, Rome Roman Empire
Nitric Acid Nitric acid is an acid many people have come across in life. One may have felt nitric acid when touching fertilizers‚ or using dyes. Nitric acid appears in substances we never thing it would be used in. In fact‚ small contents of nitric is acid is found in raindrops that fall from the sky. Nitric acid‚ or known as NHO3aq is an acid formed from reaction of ammonia and oxygen. Nitric acid is a colourless acid when it’s pure‚ or can be found yellow or red. This acid can be very corrosive
Premium Oxygen Carbon dioxide Sulfuric acid
Listening to Rain Trans. by John Balcom Sitting on this side of the mountain‚ far away Faint cries are heard from the valley below I am awakened from a beautiful dream Of a simple life By the sound of rain Making my way to the valley floor I discover a weeping orchid I realize As I reach to soothe it‚ that this flower Is the sound of rain crying From days gone by ________________________________________________________________Taking Notes 12 Sitting on this side of the mountain‚
Premium Poetry Crying