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


Explanation of hydrocarbons by Nina Nirwana

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