Acid, base and salts by Megha Gawade https://padlet.com/meghagawade25/bzfkdek1qr9j notes en-us 2017-10-29 13:07:36 UTC 2023-02-12 07:17:07 UTC hello@padlet.com Questions meghagawade25 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/201488337 2017-10-29 13:11:15 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/201488337 ~VRIDDHI SHINDE vriddhishinde91 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/203593239 2. A mixture of dyes that change their color gradually over a range of pH and is used in Testing acids and alkalis.
3. The chemicals made of common salt are Calcium carbonate and Calcium Silicate.
4. If baking soda is mixed with the other ingredients that are  used to bake a cake, it causes the mixture to expand. Therefore making it light and fluffy.
5. The pH value after which the tooth starts decaying is 5.5.
6. Baking Soda is used to:-
i) To freshen our mouth.
ii) To polish our teeth.
iii) To relieve itching.
9. Properties of Bleaching powder:
i) Soluble in water (alkali).
ii) Yellowish-white in color.
iii) Strong smell of chlorine.
Uses of Bleaching powder:
i) Water treatment.
ii) Maintain white clothes.
iii) To clear away the molds.
11. When quick lime is added to water, they react to form slaked lime. And release heat.
12. Properties of acids:
i) Acids are sour.
ii) Acids turn blue litmus red.
iii) Acids contain H+ ions.
iv) Acids pH value is from 0-7.
v) They are liquids.
vi) Turn universal indicator from green to red

 ]]> 2017-11-05 06:38:06 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/203593239 Aqsa Bukhari aqsabukhari https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665357 1.baking powder is a mixture composed of baking soda ,tartaric acid and starch.it is used to making cakes, breads and other  baked  food item
2.a mixture of dyes that changes the colour .
3. calcium ,carbonate
4.if  baking soda is mix with other ingredients that are used to make bake a cake ]]> 2017-11-08 03:50:59 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665357 HRIDOY BANERJEE https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665475 1.  Name two constituents of baking power.      (1 mark)
2.  What is universal indicator?      (1 mark)
3.  Name the chemicals that can be made of common salt      (1 mark)
4.  Why does cake become fluffy after adding baking soda?      (1 mark)
5.  Write the pH value, after which teeth start decaying?      (1 mark)
6.  State some uses of baking soda?      (2 marks)
7.  How is the concentration of hydroxide ions      (OH-) affected when excess base is dissolved in a solution of sodium hydroxide?      (2 mark)
8.  Name the gas evolved when dilute sulphuric acid acts on sodium carbonate.Write the chemical equation for the reaction involved.      (2 mark)
9.  What are the properties and uses of bleaching powder?(3 marks)
10.  Write a chemical formula to represent the action of atmospheric CO2 gas on bleaching powder when left exposed in open.      (2 marks)
11.  What happens when quick lime is added to water?      (2 marks)
12.  Write any two properties of acids.      (2 marks)

answer 1 = The last two ingredients are acidic: they combine with the sodium bicarbonate and water to produce the gaseous carbon dioxide. 

Answer 2 = a mixture of dyes that changes color gradually over a range of pH and is used (especially as indicator paper) in testing for acids.

Answer 3 = Salt is used to bleach wood pulp. It also is used to make sodium chlorate, 

Answer 4=  Baking soda causes the cake mixture to expand, allowing air in. It is this air which causes the cake to become light and fluffy. 

Answer 5=  Saliva can help neutralize the acid, but the pH of saliva can become more acidic after eating acidic foods. ... In that time, the lower pH of the mouth creates an optimal environment for bad bacteria, which eventually causes tooth decay. 

Answer 6= 
Freshen your breath. Mix 1 tsp of baking soda in a glass of water. 
Polish your teeth. Many people will use baking soda as a natural toothpaste. 
3. Make your own deodorant. 
Gently exfoliate. 
Relieve Skin Irritation. 
Relieve heartburn.
Relieve insect bites. 
Answer 7= When excess base is dissolved in the solution of sodium hydroxide then the concentration of hydroxide (OH-) ions increases. 
Answer 7= When excess base is dissolved in the solution of sodium hydroxide then the concentration of hydroxide (OH-) ions increases. 

Answer 8=Carbon dioxide is evolved.
Annswer9 : properties of bleaching powder-
strong smell of chlorine 
yellowish-white in colour 

]]> 2017-11-08 03:51:46 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665475 AADIT DIVE https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665750 ANS 1 : SODIUM BICARBONATE AND CARBONDIOXIDE.]]> 2017-11-08 03:53:25 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665750 deon_prakash https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665860 2017-11-08 03:54:09 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665860 deon_prakash https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665863

]]> 2017-11-08 03:54:10 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665863 Leisha https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665916
1) Sodium Bicarbonate  and water.
2) Universal indicator can show us exactly how strongly acidic or a solution is.
3)  -- Magnesium carbonate
     -- Silicon oxide
     -- Magnesium oxide
     -- Calcium carbonate
4) Baking soda creates a reaction that puts little carbon dioxide bubbles into the cake, like the ones in fizzy drink. These bubbles leave little pockets of air in the cake when it is cooked which makes it lighter and fluffier.
5) If the PH value of our teeth goes less than 5.5, our tooth will begin to decay.
6) --Relieve Skin Irritation-Add a cup of baking soda to bathwater to soften your skin and relieve skin irritations.
--Relieve heartburns- Baking soda is a safe antacid. Learn more here.
--Relieve insect bites- Make a simple paste of water and baking soda and apply as a salve onto affected skin.
7) When excess base is dissolved in the solution of sodium hydroxide then the concentration of hydroxide ( OH-) ions increases.


]]> 2017-11-08 03:54:27 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204665916 Aniket Mishra aniketm https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666073 question 1:
 The two ingredients are acidic: they combine with the sodium bicarbonate and water to produce the gaseous carbon dioxide. ]]> 2017-11-08 03:55:34 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666073 Saanvi saanvisingh3011 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666075 ans 1- sodium bicarbonate and water.
                                            
ans 2:universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 0 to 14 to indicate the acidity or alkalinity of solutions, where 7 indicates neutral
and3: calcium carbonate and calcium silicate 
ans 3- calcium carbonate and calcium silicate 
ans4- due to the properties of baking soda, it cause  the cake to expand
ans 5- 5.5
ans 6- used to cure the irritations caused by insect bites
used to make the cake fluffy 
it is also used to neutrillize boday odour 
ans9- properties of bleaching powder-
strong smell of chlorine 
yellowish-white in colour 
soluble in water 
uses-
clean clothes 
clean water
to clear away molds 





]]> 2017-11-08 03:55:34 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666075 Nehal https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666159 Questions
(1) Baking powder is a mixture of tartaric acid and starch.
(2) a mixture of dyes that changes colour gradually over a range of pH and is used (especially as indicator paper) in testing for acids and alkalis.
(3) the chemicals made of common salt are hydrochloric acid and sodium hydroxide.
(4)  the cake become when the baking soda and other ingrediants are added to the cake.
(5) the PH value is 5 after which the teeth start decaying.
(6) ]]> 2017-11-08 03:56:14 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666159 Arjun https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666191 Answer 1 = The last two ingredients are acidic: they combine with the sodium bicarbonate and water to produce the gaseous carbon dioxide.

Answer 2 = a mixture of dyes that changes color gradually over a range of pH and is used (especially as indicator paper) in testing for acids.

Answer 3 = Salt is used to bleach wood pulp. It also is used to make sodium chlorate,

Answer 4=  Baking soda causes the cake mixture to expand, allowing air in. It is this air which causes the cake to become light and fluffy.

Answer 5=  Saliva can help neutralize the acid, but the pH of saliva can become more acidic after eating acidic foods. ... In that time, the lower pH of the mouth creates an optimal environment for bad bacteria, which eventually causes tooth decay. 

Answer 6= 
  • Freshen your breath. Mix 1 tsp of baking soda in a glass of water. 
  • Polish your teeth. Many people will use baking soda as a natural toothpaste. 
  • 3. Make your own deodorant. 
  • Gently exfoliate. 
  • Relieve Skin Irritation. 
  • Relieve heartburn.
  • Relieve insect bites. 
Answer 7= When excess base is dissolved in the solution of sodium hydroxide then the concentration of hydroxide (OH-) ions increases.

Answer 8=Carbon dioxide is evolved.
Answer 9= alcium hypochlorite is also an ingredient in bleaching powder, used for bleaching cotton and linen. It is also used in bathroom cleaners, household disinfectant sprays, moss and algae removers, and weedkillers. In addition, calcium hypochlorite may be used to manufacture chloroform. 

Answer 10= CaOCl2 + CO2 = CaCO3 + Cl2

Answer 11= what happens chemically when quicklime is added to water filled in a bucket? When Calcium oxide i.e. quick lime is added to water filled in a bucket, it reacts vigorously with water to produce slaked lime  releasing a large amount of heat. 

Answer 12=Acids react to reactive metals.
Acids react to bases.
]]> 2017-11-08 03:56:32 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666191 ans 1.Most commercially available baking powders are made up of sodium bicarbonate (also known as baking soda or bicarbonate of soda) and one or more acid salts. Typical formulations (by weight) call for 30% sodium bicarbonate, 5-12% monocalcium phosphate, and 21-26% sodium aluminum sulfate. iyerk638 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666290
ans 2.  a mixture of dyes that changes colour gradually over a range of pH and is used (especially as indicator paper) in testing for acids and alkalis. 
ans 3. the chemicals that can be made by common salt are calcium carbonate and



]]> 2017-11-08 03:57:11 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666290 AADIT DIVE https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666302 ANS 2 ; A MIXTURE OF DYES THAT CHANGES COLOUR GRADUALLY OVER A RANGE OF pH AND USED IN ACIDS AND ALKALIS]]> 2017-11-08 03:57:19 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666302 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666322 2017-11-08 03:57:24 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666322 POOJA poojavaishnavi16 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666386  1 )Sodium bicarbonate  and water.
2 ) A mixture of dyes that changes colour gradually over a range of pH and is used in testing for acids.
3 ) ]]> 2017-11-08 03:57:51 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666386 ritu shankar ritushankar9325 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666538
1] baking soda consists of sodium bicarbonate
2] universal indicator shows wether a substance is acidic or basic, eg- litmus
3]  common salt- NaCl- sodium chloride.
4]  the reaction of baking soda and other ingredients of the cake causes the cake to become fluffy
5] the pH the value after which teeth start to decay is 5
6] baking soda is often used as a bleach, it is also used  to supress acid in insect bites and as a major ingredient of baking
7]  ]]> 2017-11-08 03:59:21 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666538 sagar panda sagar_panda https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666598  1.sodium bicarbonate
2.litmus paper
3. zinc + hydroxide
5.phosphourus
6.It is used in the baking of cake , pancake etc .
12.]]> 2017-11-08 03:59:49 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666598 natasha natasha_notani https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666677 1] baking powder is a mixture of baking soda, tartaric acid and starch.
2] the universal indicator is the PH indicator.
4] the cake becomes fluffy after baking after adding baking soda because baking soda has carbon dioxide which enables it to rise and become fluffy.
3]

]]> 2017-11-08 04:00:26 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666677 Paarth heena_wig https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666711 1)Sodium bicarbonate 
2)indicators are substances that turn blues in contact with bases and red with acids.
3)common salt =NaCL
Hence,sodium and chlorine
12)]]> 2017-11-08 04:00:46 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666711 ~NIYATI KAKKAR vriddhishinde91 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666839 1. Baking soda ( Sodium bicarbonate) and tartaric acid
2. A mixture of dyes that change their colour gradually over a range of PH and is used in testing acids and alkalis.
3. Calcium Carbonate and Calcium Silicate.
4. ]]> 2017-11-08 04:02:04 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666839 Naman beast70607 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666892 1)Baking Soda is made of tartaric acid and starch.
2)A mixture of dyes that changes color gradually used for testing acids and bases
3)Baking soda
   Washing soda
    NaOH
4) lol

]]> 2017-11-08 04:02:41 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666892 RUDRA https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666937 1. BAKING POWDER IS A MIXTURE COMPOSED OF BAKING SODA,TARTARIC ACID AND STARCH.IT IS USEDIN MAKING BREAD,CAKES AND BAKED FOOD ITEMS.
2.UNIVERSAL INDICATOR IS A MIXTURE OF INDICATORS WHICH SHOWS DIFFERENT COLOUR CHANGES FOR SOLUTION WITH DIFFERENT PH VALUES.IT IS USED TO TEST WHEATHER A SOLUTION IS ACID OR BASE.

]]> 2017-11-08 04:03:11 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666937 Ayush and Arnav arnavgshah https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666938  2:litmus paper
 3.The chemicals made of common salt are Calcium carbonate and Calcium Silicate.
4. If baking soda is mixed with the other ingredients that are  used to bake a cake, it causes the mixture to expand. Therefore making it light and fluffy.
5. The pH value after which the tooth starts decaying is 5.5.
6. Baking Soda is used to:-
i) To freshen our mouth.
ii) To polish our teeth.
iii) To relieve itching.
9. Properties of Bleaching powder:
i) Soluble in water (alkali).
ii) Yellowish-white in color.
iii) Strong smell of chlorine.
Uses of Bleaching powder:
i) Water treatment.
ii) Maintain white clothes.
iii) To clear away the molds. 
11. When quick lime is added to water, they react to form slaked lime. And release heat.
12. Properties of acids:
i) Acids are sour.
ii) Acids turn blue litmus red.
iii) Acids contain H+ ions.
iv) Acids pH value is from 0-7.
v) They are liquids.
vi) Turn universal indicator from green to red


]]> 2017-11-08 04:03:12 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666938 Aniket Mishra aniketm https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666957 Question 10:
   CaOCl2 + CO2 = CaCO3 + Cl2 
Question 4:
 
A delicious fluffy cake just doesn’t happen by chance. It takes a harmless chemical reaction to make a cake fluffy and light.

 

Baking powder is mixed with an acid to produce carbon dioxide.

 

This gas is harmless when eaten. As it becomes hot in the oven the gas expands and makes bubbles in the cake mixture. This makes the cake rise. 
Question
]]> 2017-11-08 04:03:22 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666957 ridhima ridhima1410 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666964
 
 ans4. Baking powder is mixed with an acid to produce carbon dioxide.This gas is harmless when eaten. As it becomes hot in the oven the gas expands and makes bubbles in the cake mixture. This makes the cake rise.When a carbonate (Bi-Carb Soda) is mixed with an acid (vinegar) carbon dioxide gas is produced.
Reaction mechanism
NaHCO3 + H+ → Na+ + H2O + CO2

ANS1. Most commercially available baking powders are made up of sodium bicarbonate(also known as baking soda or bicarbonate of soda) and one or more acid salts. Typical formulations (by weight) call for 30% sodium bicarbonate, 5-12%monocalcium phosphate, and 21-26% sodium aluminum sulfate. 

 

]]> 2017-11-08 04:03:26 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204666964 AADIT DIVe https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667016 ANS 3: CALCIUM CARBONATE AND ]]> 2017-11-08 04:03:48 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667016 vjb chidiya1972 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667303 2017-11-08 04:06:00 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667303 MISHA https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667333 1. SODIUM BICARBONATE
AND WATER]]> 2017-11-08 04:06:21 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667333 deon deon_prakash https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667336 3 sodium chloride is a salt 
the formula is NaCl


]]> 2017-11-08 04:06:22 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667336 fyfuh chidiya1972 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667388 2017-11-08 04:06:52 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667388 AADIT DIVE https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667445 ANS 4: BAKING SODA IS USED TO MAKE THE CAKE MORE FLUFFIER AND ]]> 2017-11-08 04:07:21 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667445 kamya kamya3107 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667458 1) baking soda is a composition of baking soda , tartaric acid and starch 
2)universal indicator is a PH indicator which is composed solution of several compounds

]]> 2017-11-08 04:07:27 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667458 MISHA https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667559 2.  A MIXTURE OF DYES THAT CHANGES COLOUR GRADUALLY OVER A RANGE OF pH AND IS USED IN TESTING FOR ACIDS]]> 2017-11-08 04:08:11 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204667559 Aniket Mishra aniketm https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668112 Questions 7:
  When excess base is dissolved in the solution of sodium hydroxide then the concentration ofhydroxide (OH-) ions increases. ]]> 2017-11-08 04:12:19 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668112 AADIT DIVE https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668202 ANS 5 : 5]]> 2017-11-08 04:12:46 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668202 siya https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668237 Baking powder contains a combination of baking soda, an acid like � cream of tartar and a moisture absorber like cornstarch.
2]]> 2017-11-08 04:12:57 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668237 AADIT DIVE https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668309 ANS 6 : IT  MAKES THE MOUTH MORE FRESH.
IT POLISHES OUR TEETH AND RELIEVES AC]]> 2017-11-08 04:13:28 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668309 subir subirmanninsa99 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668456 2017-11-08 04:14:23 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668456 aishanya chidiya1972 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668647 1] tartaric acid and starch
2]]]> 2017-11-08 04:15:30 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668647 subir subirmanninsa99 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668686 2017-11-08 04:15:43 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668686 subir subirmanninsa99 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668701 2017-11-08 04:15:49 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668701 subir subirmanninsa99 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668711 2017-11-08 04:15:54 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668711 subir subirmanninsa99 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668733 2017-11-08 04:16:00 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668733 subir subirmanninsa99 https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668765 2017-11-08 04:16:19 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668765 vaibhavi https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668821 2017-11-08 04:16:49 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204668821 tanisha_bartakke https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204775147 2017-11-08 12:54:22 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204775147 TANISHA BARTAKKE tanisha_bartakke https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204775190 1.  CONSTITUENTS OF BAKING POWDER ARE :
SODIUM, HYDROGEN AND CARBONATE (  NaHCO3 )

2. AN UNIVERSAL INDICATOR HELPS US TO INDENTIFY WEATHER THE SUBSTANCE IS A BASE OR ACID. EX : LITMUS PAPER
 
3. COMMON SALT : 
SODIUM + CHLORINE = NaCl ( COMMON SALT )

4. THE BAKING SODA REACTS WITH THE OTHER INGRIDIANTS  IN THE CAKE BATTER AND HENCE THE CAKE BECOMES FLUFFY.

5. IF THE PH LEVEL OF OUR TEETH GOES LESS THEN 5.5 THE THEY START DECAYING.

6. USES OF BAKING SODA : 
IT IS USED IN SOAPS , MEDECINS , CAKES , BREADS ETC.


]]> 2017-11-08 12:54:34 UTC https://padlet.com/meghagawade25/bzfkdek1qr9j/wish/204775190