20 chemical reaction with their equations happened in daily life
Answers
Answer:
Explanation:
photosynthesis= 6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
aerobic cellular respiration=C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (36 ATPs)
anaerobic cellular respiration=C6H12O6 → 2C2H5OH + 2CO2 + energy
combustion=C3H8 + 5O2 → 4H2O + 3CO2 + energy
rust=Fe + O2 + H2O → Fe2O3. XH2O
metathesis=HC2H3O2(aq) + NaHCO3(aq) → NaC2H3O2(aq) + H2O() + CO2(g)
acid base rection=HCl + KOH → KCl + H2O
digestion
electrochemistry=Batteries use electrochemical or redox reactions to convert chemical energy into electrical energy. Spontaneous redox reactions occur in galvanic cells, while nonspontaneous chemical reactions take place in electrolytic cells.
soap and detergent reaction
cooking
Answer:
Chemistry in the kitchen
1- Solubility reactions : When salt is dissolved in water ionic bonds are broken causing a solvation of cations and anions.
NaCl → Na + + Cl -
2- Phase changes : When water is boiled while cooking or preparing coffee or tea, a phase change occurs between liquid water and gaseous water.
H 2 OR (L) → H 2 OR (G)
3- Combustion Reactions : Gas kitchens use propane to produce a flame.
C 3 H Referring to Fig. + 5O 2 → 3CO 2 + 4H 2 OR
4- Chlorine : The chlorine used as a detergent is actually sodium chlorite which is a reducing agent. The stains of the clothes are denominated chromophores and they possess insaturaciones. Chlorine attacks these unsaturations by removing color from stains. Technically it does not remove the stain but it makes it invisible.
5- The soap : Soaps and detergents possess a polar part, usually a carboxylic acid, attached to a non-polar aliphatic chain which gives it the ability to form micelles. These micelles have the ability to surround dirt so it can be removed from clothing, dishes and our bodies.
6- Sodium bicarbonate : It is a weak base that upon reacting with acid like vinegar or water (which is slightly acidic) releases carbon dioxide.
NaHCO 3 + CH 3 COOH → CH 3 COONa + H 2 O + CO 2
This compound is the active ingredient of many antacids (C., 2015).
7- Medium term : The kitchen is a chemical change that alters the food to make them more tasty, kill the dangerous microorganisms and make them more digestible.
The heat of cooking can denature proteins, promote chemical reactions among ingredients, caramelize sugars, etc. (Helmenstine A. M., 10 Examples of Chemical Reactions in Everyday Life, 2017).
8- Artificial flavor and color : Many processed foods have chemicals that give it a specific flavor or color and help preserve it.
9- Cry for the onion : The onion contains molecules of amino acids sulfoxides. By cutting off the onion, the cell walls break free of these sulfoxides along with enzymes that degrade them to sulfenic acids, an organosulfuric compound of the formula R-SOH that is irritating to the eyes (Reactions, 2016).
Chemistry at Home
10- Batteries : Use electrodeochemical or redox reactions to convert chemical energy into electrical energy. Spontaneous redox reactions occur in galvanic cells, while non-spontaneous chemical reactions occur in electrolytic cells (Helmenstine, 2017).
11- LCD screens : LCD TVs contain molecules of helical crystals that have the property of orienting themselves according to an electrical signal and by making them change the tone or color provided by a LED bulb. Each molecule of glass represents a pixel on the television, the more molecules, the greater the resolution.
12- Old books that smell good : The decomposition of the cellulose of the paper of the books, gives that yellow color to the leaves and a smell of vanilla. If you have old books that smell good in your library it is due to lignin or vanillin molecules in it.
Medications and drugs : Some drugs are molecules that partially block the hormonal activity produced by a given stimulus (for example, stress medications or antiepileptics) while others are enzyme inhibitors such as analgesics.
30 Chemical Reactions of Daily Life 1
14- Shampoo : Like detergents and soaps, shampoos remove grease from the scalp forming micelles. The ingredient that is responsible for this, usually are sulfates such as dodecylsulfate or sodium lauryl ether sulfate or ammonium.
15- Deodorants and antiperspirants : The bad smell of the armpits, feet and breath is produced by bacteria that feed on the proteins and fats in the sweat that secrete the apocrine glands.
16- Cosmetics and make-up : Are chemicals and pigments that stick to the skin. They are usually non-polar compounds such as waxes and oils.
Chemistry in the garden
17- Photosynthesis : Is the process by which green plants make their own food. This occurs in the presence of sunlight and other raw materials, namely carbon dioxide and water. The chlorophyll pigment collects light energy from sunlight, which is converted into glucose (Crystal, 2017).
6CO 2 + 6H 2 O + hν → C 6 H 12 OR 6 + 6O 2
18- Oxidation Reactions : An oxide coating is often noticed on unpainted iron surfaces which gradually leads to the disintegration of iron. This is a chemical phenomenon called oxidation.
Fe + O 2 + H 2 O → Faith 2 OR 3 . XH 2 OR
19- Organic decomposition : The decomposition of organic food or even living things are oxidation reactions produced by bacteria that degrade biochemical macromolecules in simple molecules such as nitrites, nitrates, CO 2 And water (Helmenstine, Chemical Change Examples, 2017).
One of the methods of preserving food is through freezing
20- Fertilizers : Potassium, nitrates, phosphates and sulfates are used in soil to provide nutrients to plants and are able to grow
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