Jumat, 28 April 2017

Give Evidance of Chemichal Reaction In Everyday Life


Examples of Chemical Reactions in Everyday Life

There are many chemicals that are most essential in daily life. These chemicals are used either in combined form or as some reagents. More than 1000 of these chemicals are in use daily life. Here are the list of few chemicals and its uses.


No
Common name of the Chemical
Molecular Formula and IUPAC name
Use
1
Baking powder
NaHCO3; sodium bicarbonate
Used for baking for cooking, releases CO2 in reaction with other ingredients
2
Soap
Esters
Used for bathing and washing clothes
3
Detergent
Sodium sulphate, sodium hydroxide and phosphatecompounds
Used for washing clothes
4
Toothpaste
Calciuym carbonate, sodium flouride
Used for cleaning teeth while brushing
5
Salt
NaCl; Sodium Chloride
Used in seasoning for cooking; also used as preservative
6
Vinegar
C2H4O2
acetic acid, ethanoic acid
Used as preservative and for seasoning foods. Utilized for various household cleaning uses.
7
Graphite
Carbon
Used in Pencil
8
Alcohol
Ethanol(C2H6O)
Used in alcoholic drinks
9
Bleaching Powder
NaOCl
Commonly used domestic bleach. Used for cleaning purposes
10
Sugar
Sucrose; C12H22O11
Used in cooking as sweetner
11
Aspirin
C9H8O4; acetyl salicylic acid
Used in various medicines
12
Mouthwash
H2O2; hydrogen peroxide,
Used for personal hygiene.
13
Caustic soda

NaOH; sodium hydroxide

It’s a highly corrosive alkali which is used for cleaning, unblocking sinks, drains and toilets.
14
Moth balls
C6H4Cl2; 1,4-dichlorobenzene
Have strong pungent smell and is used for
15
Chalk




CaCO3; calcium carbonate

Uses incl. blackboard chalk, pavement (or, in USA, “sidewalk”) chalk, gymnastics and rock-climbing, and sometimes in toothpaste.


Examples of Chemical Reactions in Everyday Life 


1. Photosynthesis 
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2

2. Aerobic Cellular Respiration  
Here is the overall equation for aerobic cellular respiration:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (36 ATPs)

3. Anaerobic Respiration 
The overall chemical equation for one form of anaerobic respiration is:
C6H12O6 → 2C2H5OH + 2CO2 + energy

 
4. Combustion 
For example, the combustion reaction of propane, found in gas grills and some fireplaces, is:
C3H8 + 5O2 → 4H2O + 3CO2 + energy 

5. Rust Is a Common 
Here is the chemical equation for the rusting of iron:
Fe + O2 + H2O → Fe2O3. XH2O

6.Mixing Chemicals 
Here is the overall chemical equation for the reaction between baking soda and vinegar:
HC2H3O2(aq) + NaHCO3(aq)  → NaC2H3O2(aq) + H2O() + CO2(g)

7. Acid-Base Reactions
 For example, 
here is the chemical equation for an acid-base reaction that produces potassium chloride, a common table salt substitute:
HCl + KOH → KCl + H2O


18 komentar:

  1. What about the car engine between oil and gasoline work with chemical reaction?

    BalasHapus
    Balasan
    1. f gasoline or petrol combustion in a vehicle of course uses chemical reactions of hydrocarbon combustion because all fuels called gasoline generally consist of hydrocarbons, with 4 to 12 carbon atoms (usually called C4 to C12).
      2 C₁₈H₁₈ (g) + 25 O₂ (g) → 16 CO₂ (g) + 18 H₂O (g)
      But if the oil I also do not know linggo, and have not got the literature that would taste.

      Hapus
  2. Give some examples of Chemical Reactions in Everyday Life on the battery!

    BalasHapus
    Balasan
    1. Dry Cell Zinc - Carbon
      Dry cells can also be called Lenchanche cells or batteries. This dry battery was granted the invention patent in 1866. The Lanchache cell consisted of a zinc cylinder containing a paste of a mixture of rocks (MnO2), salmiak (NH4Cl), carbon (C), and a little water. With the water so dry battery is not 100% dry.
      These cells are usually used as a source of energy or energy in lights, flashlights, radios, wall clocks, and much more. The use of zinc metal is as anode while the cathode is used inert electrode, ie graphite, which is dipped in the middle of the paste. This paste aims as an oxidizer. The zinc will be oxidized according to the equation of the reaction below:
      Zn (s) → Zn2 + (aq) + 2e- (anode)
      While the cathode consists of a mixture of MnO2 and NH4Cl. The reaction can be written as follows:
      2MnO2 (s) + 2NH4 + (aq) 2e- → Mn2O3 (s) + 2NH3 (aq) + H2O (l) (cathode)
      The cathode will produce ammonia, this ammonia will react with Zn2 + produced in the anode. The reaction will form a complex ion [Zn (NH3) 4] 2+. This dry cell can not be used repeatedly and has a short durability. And the price on the market is very cheap.

      B. Mercury Battery
      This mercury battery is one of the small batteries developed for commercial or commercial ventures. Zinc anodes and mercury (II) oxide (HgO) cathodes are the constituents of these mercury batteries which are associated with potassium hydroxide (KOH) electrolyte solutions. This cell has a potential difference of ± 1.4V. The reactions that occur in this battery are:
      Zn (s) + 2OH- (aq) → ZnO (s) + H2O + 2e- (anode)
      HgO (s) + H2O + 2e- → Hg (l) + 2OH- (aq) (cathode)
      The reaction of the whole or so called net reaction is:
      Zn (s) + HgO (s) → ZnO (s) + Hg (l)




      C. Silver Oxide Battery
      Silver oxide batteries are quite thin and the price is relatively more expensive than other batteries. These batteries are popularly used on clocks, cameras, and electronic calculators. Silver oxide (Ag2O) as cathode and zinc as its anode. The electrode reaction takes place in an alkaline electrolyte and has the same potential difference as the alkaline battery of 1.5 V. The reaction is:
      Zn (s) + 2OH- (aq) → Zn (OH) 2 (s) + 2e- (anode)
      Ag2O (s) + H2O + 2e- → 2Ag (s) + 2OH- (aq) (cathode)

      D. Lithium Battery
      Consists of lithium as anode and MnO2 as an oxidizer (as in alkaline batteries). Lithium batteries can produce a larger electric current and durability longer than dry batteries of the same size. Here's the notation of Lithium battery:
      Li│Li (non-aqueous solvent) │KOH (pasta) │MnO2, Mn (OH) 3, C

      Hapus
  3. How photosynthesis can be included in the example of chemical reactions in everyday life?

    BalasHapus
    Balasan
    1. Because in the process of photosynthesis occurs chemical reaction is anabolism and catabolism reaction is the breakdown of complex compounds into simple compounds and the formation reaction is the synthesis of simple compounds into complex compounds

      Hapus
  4. How to prevent corrosion?

    BalasHapus
    Balasan
    1. Here are the ways of corrosion prevention that are based on these two traits: 1. Painting: Bridges, fences, and railings are usually painted. Paint avoids the contact of iron with air and air.2. Oil or Grease Spread: this method is applied to a variety of tools and machines. Oil and steel contact structure with air.3. Wrapped With Plastic: a wide range of items, such as dish rack and bicycle wrap wrapped with plastic. Plastic can replace iron contact with air and air.4. Tin Plating (tin plating): cans of iron packing lined with lead. Coating is done by electrolysis, called electroplating. Tin is a rust-resistant metal. Tin-coated iron has no corrosion because there is no contact with oxygen (air) and air. Will the tin layer protect only the iron as long as it is intact (without flaw). The tin coating is broken, for example, scratched, the tin is great or the iron corrosion. This happens because the iron reduction potential is more negative than lead. Therefore, iron coated with tin will form an electrochemical cell with iron as anode. Thus, lead promotes iron corrosion. Will it really be a can - a used tin quickly crushed. Galvanization (zinc plating): Iron pipe, telephone pole, body obil, and various other items lined with zinc. Likes with tin, zinc can protect the iron from corrosion is not complete layer. It happens because of a mechanism called ijode. Because of the potential reduction of iron is more positive than zinc, the iron that is in contact with zinc will form electrochemical cells with iron as cathode. Thus, the iron is protected from and zero oxidation. Cromium plating: iron or steel can also be coated with chromium to provide a shiny protective coating, for example for car bumpers. Cromium plating is also performed by electrolysis. Same as zink. Chromium may have a shock effect or it is damaged. Sacrifice Protection (anode sacrifice): magnesium is a much more active (more rusty) metal than iron, then the magnesium will not rust. How to use to protect steel pipe planted in soil or ships. Periodically, the magnesium bar must be replaced.

      Hapus
  5. Explain me the process of enzymatis ?

    BalasHapus
    Balasan
    1. The digestive process is chemically (enzymatic)
      That is the process of changing food from complex substances into substances that are simpler by using enzymes. Enzymes are chemicals produced by the body that accelerate chemical reactions in the body. The process of digesting food in humans involves digestion of food. Human digestive instruments are the organs of the body that digest the food we eat. Digestive tool can be distinguished on the digestive tract and digestive gland. Digestive glands produce enzymes that aid in the process of chemical digestion. Human digestive glands consist of salivary glands, gastric glands, liver (liver), and pancreas. The following will be discussed one by one digestion process that occurs in the digestive tract of food in humans

      Hapus
  6. please explain to me about Digestion at Everyday Chemical Reactions? thanks

    BalasHapus
    Balasan
    1. The Chemical Changes That Happen In The Human Digestive System
      If we talk about digestive problems then in your mind will definitely differentiate into 2 that is digestive mechanical and chemical digestion, because in this task I explain the chemical changes my digestive mechanics skip yes J
      Furthermore, according to the explanation I read from the internet and my book SMA chemical digestion is the change of food from a complex or large substance into a simpler substance, this solution occurs because of the enzyme. Enzyme enzyme is present in the mouth, stomach, small intestine, etc. Its principal is found in the digestive system.
      Where the first food that goes through the mouth will occur mechanical digestion (skip): p after that go straight into the course of his course through the esophagus first yes: p
      After that dilander there are many Enzymes but I will explain one of the enzyme only is Pepsin enzyme. Pepsin enzyme serves to break the protein into peptone. Once in the stomach proceed to the Intestine, in this small intestine again there are many enzymes -____- I will explain the 3 enzymes that are important in this small intestine enzyme Amylase, Enzyme Tripsin, and Lipase Enzyme. This amylase enzyme serves as a breakdown of maltose into glucose. Tripsin enzyme serves as a breakdown of peptone into amino acids. Lipase enzyme serves as a break down of fat into fatty acids and glycerol.
      After the small intestine we go to the large intestine where the large intestine where the rest of the residual decay ingredients were digested and the perpetrators who decompose the rest of this meal there is the bacteria Escherichia Coli, the bacteria will produce gas that is H2S, NH4.

      Hapus
  7. Give me reaction for batteray, please?

    BalasHapus
    Balasan
    1. (Aq) + 2 NH2- (aq) + 2e → Mn2O3 (s) + 2 + NH3 (aq) + H2O (l) + Redox: Zn (s) + 2 MnO2 + 2 NH4 + (aq) → Zn2 + (aq) + Mn2O3 (s) + 2NH3 (aq) + H2O (l) Next, Zn and NH3 form complex ions [Zn (NH3 ) 4 + 2 + Zn2 + (aq) + 4 NH3 (aq) → [Zn (NH3) 4] 2+ (aq) The potential of each dry battery is 1.5 volts. Battery dry if it is exhausted can not be refilled so called primary cell. For durable, the NH4Cl is replaced by KOH. The reaction takes place as followsAnoda: Zn (s) + 2 OH- (aq) → Zn (OH) 2 + 2e-Cathode: 2 MnO2 (s) + 2 H2O (l) + 2e- → 2 MnO (OH) + 2 OH- + Redox: Zn (s) + 2 MnO2 (s) + 2 H2O (l) → Zn (OH) 2 (s) + 2 MnO (OH)

      Hapus
  8. What substances are contained in the detergent?

    BalasHapus
    Balasan
    1. Detergents consist of: 1. Surfactant (surface active agent) is the main ingredient of detergent active substance that has the tip of the hydrophil (like water) and hydrophobia (like fat). In this detergent, the type of charge carried surfactant is anionic. Often cationic surfactants are added as bactericidal (bacterial bacteria). The function of the anionic surfactant is a wetting agent that will infiltrate the bond between the impurities and the fabric fibers. This will make the dirt roll up, gradually become large, then loose in the laundry air in the form of granules. In order for these granules do not rupture and stick to the fabric, it is necessary to add another type of surfactant that will wrap the granules and the building refuse with the air, so that the position is floating. This is to make it easier to be wasted with laundry water. In general, surfactant removable dirt is derived from dust or soil. If dirt is more severe such as food stains and blood stains, it is necessary to add enzymes such as protein or fatty breaking enzymes. However, if the stain is long, it will remain mutually eliminated because between the stain and the fabric fibers can occur polymerization reactions that unite the stain with the fabric. There are four categories of surfactant namely: A. Anionics: - Alkyl Benzene Sulfonate - Linear Alkyl Benzene Sulfonate (LAS) - Alpha Olein Sulfonate (AOS) B. Cationic: Ammonium Salt. Nonionic: polyethoxic nylon phenolD. Amphoteric: Acyl Ethylenediamine2. Builder (Permbentuk) functions to improve the washing efficiency of the surfactant by deactivating the mineral causing the air hardness: A. Phosphate: Sodium Tri Poly Phosphate (STPP) B. Acetate: - Nitrile Tri Acetate (NTA) - Ethylene Diamine Tetra Acetate (EDTA) C. Silicate: ZeolithD. Nest: Citric acid3. Filler (filler) is a detergent additive that does not have the ability to increase washing power, but adds quantity. Example: Sodium sulfate4. Additives are supplemental ingredients for more attractive products, such as fragrances, solvents, bleaches, dyes, etc. not directly related to laundry detergent. Additives are added more for the purpose of product commercialization. Examples: Enzymes, Borax, Sodium Chloride, Carboxy Methyl Cellulose (CMC).

      Hapus
  9. hai nina, can you explain why we cant separated with cemical reaction? can explain about it

    BalasHapus
    Balasan
    1. Chemistry is a science related to everyday life or natural phenomena, because starting from the affairs of food and clothing, fuel, medicine to building construction materials, electronic industry materials and products involving chemistry chemistry. What distinguishes chemistry from other sciences is that chemistry specializes in the structure, structure, properties and changes of matter, and the energy that accompanies material change.
      Benefits of Chemistry for Various Fields. Chemistry has an important position and is required by other fields of science. Some of the actual benefits that it is the benefits of chemistry in human life are not even so conscious. Here are some of the benefits of chemistry in human life that can not be replaced by other science.

      Hapus

Explanation of hydrocarbons by Nina Nirwana

link youtube video : https://www.youtube.com/watch?v=ROP-Q2SWdek Definition           Definition of Hydrocarbons. Hydroca...