Does anybody know the examples of neutralization reaction in our everyday life?
372224
Alka seltzer.  Citric acid and sodium bicarbonate, both in an anhydrous state (that's to say dry, no water present),  are present with acetylsalicylic acid (aspirin) in the tablet.  When mixed in water a neutralization reaction occurs from which an inocuous organic salt is formed, acetylsalicylic acid is dissolved in water and lots of carbon dioxide is released, some dissolving in the water, giving alka selzer its heavenly fizz.
210520
When the ink is sprayed onto a porous material the water in the ink reacts with carbon dioxide in the air to form carbonic acid. The carbonic acid then reacts with the sodium hydroxide in a neutralization reaction to form sodium carbonate. Neutralizaton of the base causes a color change of the indicator and the stain disappears:\n\nCarbon dioxide in the air reacts with water to form carbonic acid:\n\nCO2 + H2O -> H2CO3\n\nThe neutralization reaction is sodium hydroxide + carbonic acid -> sodium carbonate + water:\n\n2 Na(OH) + H2CO3 -> Na2CO3 + 2 H2O \n\nHere's how to make your own disappearing ink:\n\n   1. Dissolve the thymolphthalein (or phenolphthalein) in the ethyl alcohol.\n   2. Stir in 90 ml of water (will produce a milky solution).\n   3. Add sodium hydroxide solution dropwise until the solution turns a dark blue or red (might take slightly more or less than the number of drops stated in the Materials section).\n   4. Test the ink by applying it to fabric (cotton tee-shirt material or a table cloth works well). Paper allows less interaction with air, so the color change reaction takes more time.\n   5. In a few seconds, the 'stain' will disappear. The pH of the ink solution is 10-11, but after exposure to air will drop to 5-6. The damp spot will eventually dry    5. A white residue may be visible on dark fabrics.\n      Sponsored Links\n\n      AP Chemistry TutoringAccess to 30,000+ Discovery Videos For K-12. Sign up for 30-Day Trial!www.Cosmeo.com\n\n      Selenium ChemicalsSelenium dioxide and other Selenium Chemicals producer in the worldwww.vitalchem.com\n\n      Acids and Bases Homework?Chemistry Wizards for Your Homework Easy Step-by-Step Solutions Nowwww.molecularsoft.com\n      The residue will rinse out in the wash.\n   6. If you brush over the spot with a cotton ball that has been dampened in ammonia the color will return. Similarly, the color will vanish more quickly if you apply a cotton ball dampened with vinegar or if you blow on the spot to improve air circulation.\n   7. Leftover ink may be stored in a sealed container. All of the materials may be safely poured down the drain. \n\nDisappearing Ink Safety\n\n    * Never spray disappearing ink into a person's face. Particularly avoid getting the solution in the eyes.\n    * Preparing/handling the sodium hydroxide (lye) solution requires adult supervision, as the base is caustic. In case of skin contact, immediately rinse well with water. \n\nHere's what you need in order to make your own blue or red disappearing ink:\n\n    * 0.10 g thymolphthalein for blue ink or phenolphthalein for red ink (1/3 of 1/8 tsp)\n    * 10 ml (2 tsp) ethyl alcohol (ethanol) [can substitute 14 ml or 3 tsp of ethyl rubbing alcohol]\n    * 90 ml water\n    * 20 drops of 3M sodium hydroxide solution or 10 drops 6M sodium hydroxide solution [make a 3 M sodium hydroxide solution by dissolving 12 g of sodium hydroxide NaOH (1 level tablespoon of lye) in 100 ml (1/2 cup) of water.] \n\nLet's try it out...
909642
My son who was in 8th grade last year did one on how acids like those in lemon juice changed the structure of sugar. The compared them to an alkaline base such as milk. It was pretty neat because when he added the lemon juice to the sugar a chemical reaction occurred. He won. You can also do something if you are allowed to work with chemicals of how HCl hydrochloric acid can cook an egg or how it is neutralized by a base such as mylanta. Check with your teacher on that one. \n\nNot knowing what you are studying to this point I am sending you a link that has a lot of ideas. Good Luck.
729616
Could you give a few examples please?
988889
understanding the reaction meachanism \neffect of catalysts etc....\ndetermining the amounts needed
954118
Examples of problems that are more serious include:\n\nA severe allergic reaction (anaphylaxis). Severe allergic reactions are not common but can be life-threatening and require emergency care. Signs or symptoms may include: \nShock, which may occur if the circulatory system cannot get enough blood to the vital organs.\nCoughing, wheezing, difficulty breathing, or feeling of fullness in the mouth or throat.\nSwelling of the lips, tongue, ears, eyelids, palms of the hands, soles of the feet, and mucous membranes (angioedema).\nLightheadedness and confusion.\nNausea, diarrhea, and stomach cramps.\nHives and reddening of the skin. These symptoms often occur with other symptoms of a severe reaction.\nA toxic reaction to a single sting or bite. Spiders or insects that may cause this include: \nBlack widow spider.\nBrown recluse spider.\nHobo spider.\nScorpion.\nPuss caterpillar (woolly slug).\nA toxic reaction to multiple stings or bites from a bee, wasp, or fire ant. \nA bee leaves it stinger behind and then dies after stinging. Africanized honeybees, the so-called killer bees, are more aggressive than common honeybees and often attack together in great numbers.\nWasps, including hornets and yellow jackets, can sting over and over. Yellow jackets cause the greatest number of allergic reactions.\nA fire ant attaches to a person by biting with its jaws, then, pivoting its head it stings from its abdomen in a circular pattern at multiple sites.\nA large skin reaction at the site of the bite or sting. \nA skin infection at the site of the bite or sting. \nSerum sickness, a reaction to the medications (antiserum) used to treat a bite or sting. Serum sickness may cause hives and flu-like symptoms 7 to 14 days after the use of antiserum. \nA virus infection. Infected mosquitoes can spread the West Nile virus to people, causing an inflammation of the brain (encephalitis). For more information, see the topic West Nile Virus. \nA parasite infection. Infected mosquitoes can spread malaria. For more information, see the topic Malaria.
445105
damn! i should know this...i'm a science chem/bio student\n\ngimme some time...they are basic and acidic in nature. so in solution, there's the [H] ions for reaction in/around cells
828596
It reacts when in contact with any acid material. When combined with an acid, it forms a salt.
763299
There's two things you're being asked to recognize.\n(1) what kind of reaction is this\n(2) is it going to go forward?\n\nLets deal with them in order.\n\n(1)  What kind of reaction is it.  \n\nI find it very helpful personally to say the names of the molecules out loud.\n\nPhosphoric Acid reacts with Strontium Hydroxide to form what?\n\nWell, the first reactant is an acid, right? The second reactant is a metal hydroxide, like sodium hydroxide, so its a base.  That makes this an acid-base neutralization.  There's no redox chemistry going on here, so the bonds in the polyatomic anion, phosphate (PO4 (3-) ) are going to all remain intact.\n\nRemember, an acid + base neutralization will always form water and a salt.  In this case , your salt would be a combination of the non-hydrogen portions of the acid (PO4) and the metal.  \n\n\n(2)  Will this reaction go forward?\nStrontium hydroxide is moderately soluble in water.  The phosphate salt very nonsoluble.  That means that the product of the displacement will be taken "out" of the solution, driving the reaction towards formation of products.\n\n*********NOTE**********\nMany of your choices aren't charge-balanced molecules.  This may help you tremendously.  I think you may have a typo in your question.\n\n*********NOTE 2*********\nOnce you fixed the choice (d) your typo was taken care of.
729647
Technically with molar amounts being equal, an acid and a base react in what is called a "neutralization reaction"...\n\nie:\n\nHCl + NaOH ---> NaCl and water\n\nBasically you get a salt and a water.
761118
a. by the proccess of titration.  few drops of universal indicator are poured onto the base. acid is poured  slowly with the help of the burette. when the base is decolourised this indicates that it has been neutralised.\n\nb. vinegar\nc. all of the above\nd. 7
1159939
look around "Life is chemistry"\n1- the air we breathe diffuse in our tissue so gas exchange occurs this by chemistry.\n2- the food we eat is treated with chemical cpds to kill pests (in agriculture)  & increase it's expiary (can food).\n3- plants keep our life possible on the planet by photosynthesis (it absorb CO2 & release O2) this is chemistry.\n4- chmistry used in drugs preparation.\n5- chemiacal cpds used as fertilizers,detergants,sterilizers...etc\n6- the perfume u use made by chem.\n7- chemistry control our body (enzymes,hormones,DNA etc) this is biochemistry.\n                          Finally if u look around u will found that nothing \n                                             is not chemistry.
955333
an easy example you can remember is H2O(water).\nif u want a more difficult one, u can use CH3COOH(acetic acid)!\n\nALL DE BEST!
936577
Taking baking soda for heartburn:\nNaHCO3 + HCl----->NaCl + H2O + CO2 (burp!)\n\nSomeone left the cap off the hydrogen peroxide bottle:\n2H2O2--->2 H2O + O2 \n\nRotting eggs near fine silverware:\nH2S + Ag --------> AgS (tarnish) + H2  (sounds dangerous!)\n\nPhotosynthesis (Overall reaction)\n6CO2 + 6H2O--------->C6H12O6 +6O2\n\nThe same person left the cap off the bottle of ammonia:\nNH4OH-------------->NH3 + H2O\n\nGrill them burgers( Propane):\nC3H8 + 5O2-----3CO2 + 4H2O\n\nAction of yeast  on sugar:\nMaking bread or making wine:\nC6H12O6------->C2H5OH  +  CO2   (equation not balanced)\n\nRusting of iron:\n4Fe +3 O2--------->2Fe2O3\n\nHey, that aluminum siding looks old:\n  4Al + 3O2------------2Al2O3
494533
No.  There are plenty - sugar is a good example - no dissociation, but nicely polar and highly soluble in water.
748741
2K + I2 -> 2KI\n\nBa + S -> BaS\n\nMgBr2 + MnI6 -> No Reaction\n\nC7H16 + H2O -> No Reaction\n\n2KI + Br2 -> 2KBr + I2
877634
Any acid, for example:\n\nHCl + H2O  --> Cl- + H3O+