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why we should use only wet litmus paper?
is Fe + CuSO4 -----> FeSO4 +Cu exothermic
reactions occurring in the upper atmosphere and thier impect on our earth.
determine the molecular formula of an oxide of iron in which the mass percent of iron and oxygen are 69.9 and 30.1 respectively.molecular mass is 160amu??????
is this also an exothermic reaction ? plz answer asap.. i hav my practicals 2moro !!
why we should take nly small amount of chemicals for such type of experiments? what will happen if we take large amount of chemicals??????
show an experiment to show and observe the following reactions and classify them into:
(1) combination reaction
(2) decomposition reaction
(3) displacement reaction
(4) double displacement reaction
A) action of water on quick lime
B) action of heat on ferrous sulphate crystals
C) iron nails kept in copper sulphate solution.
D) reaction between sodium sulphate and barium chloride solution.
give me da inference n conclusion of reaction between magnesium n oxygen to form magnesium oxide.
Can i get the procedure for the experiment to carry out the decompositon of Lead Nitrate to formLead Oxide + Nitrogen dioxide + Oxygen??
i want to by heart the symbols element of the chemical compound ! how can i learn it....
Classifying reactions into different categories (experiment 13 in lab manual) can anyone please give me the procedure or explaination of this experiment, I have my practical tommorow and I have lost my book, plzz explain it to e within 3 hours, I will be really grateful to you...~!!!
what if the solutions of barium cloride and sodium sulphate are cold? does the same reaction take place ,.i.e., BaSO4 (ppt)
thank you meritnation for all the interactive videos which you have provided....
on iron nail copper get deposited
a_1st on the lower part of the nail and proceeds to the upper part
b_1st on the upper part of the nail and proceeds to the lower part
c_on the entire surface of the nail
d_on the nail in small patches
and why...........
what will happen to ferrous sulphate crystals if put on cold and wet conditions?
what if the solutions are cold?
what do u mean by water of crystallition
is the reaction shown abov is exothermic or endothermic?
why should thistle funnel be dipped in concentrated solution of H2SO4
what is blood and their importance
what if the solutions are cold ?????????
These problems are taken from the book laboratory manual for science class 10.The experiment no. for this problem is 1 ( b ) chemical reaction of burning Mg ribbon in air .This book is available on www.ncert.nic.inThese questions are asked at the end of the experiment
Answer these questions based on experiments
1 - Is there a possibility in the above reaction ?
2 - Is there any similarity LiH, MgO, and K2S ?
plz provide something on saponification reaction
like for preparing soap........
is this reaction exothermic
Why arent the green dots appearing? ive watched each video about 4 times viewd concept 2 times and apparatus and precautions 1 time each ? what should i do?
how do you calssify the reaction?
difference between soaps and detergents
plz give me a balanced equation in which silver recovers from silver nitrate when copper metal reacts with it.
why so slow? :P
xpalin me the practical.
science experiment.can any one help me in science practical
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Syllabus
why we should use only wet litmus paper?
is Fe + CuSO4 -----> FeSO4 +Cu exothermic
reactions occurring in the upper atmosphere and thier impect on our earth.
determine the molecular formula of an oxide of iron in which the mass percent of iron and oxygen are 69.9 and 30.1 respectively.molecular mass is 160amu??????
is this also an exothermic reaction ? plz answer asap.. i hav my practicals 2moro !!
why we should take nly small amount of chemicals for such type of experiments? what will happen if we take large amount of chemicals??????
show an experiment to show and observe the following reactions and classify them into:
(1) combination reaction
(2) decomposition reaction
(3) displacement reaction
(4) double displacement reaction
A) action of water on quick lime
B) action of heat on ferrous sulphate crystals
C) iron nails kept in copper sulphate solution.
D) reaction between sodium sulphate and barium chloride solution.
give me da inference n conclusion of reaction between magnesium n oxygen to form magnesium oxide.
Can i get the procedure for the experiment to carry out the decompositon of Lead Nitrate to formLead Oxide + Nitrogen dioxide + Oxygen??
i want to by heart the symbols element of the chemical compound ! how can i learn it....
Classifying reactions into different categories (experiment 13 in lab manual) can anyone please give me the procedure or explaination of this experiment, I have my practical tommorow and I have lost my book, plzz explain it to e within 3 hours, I will be really grateful to you...~!!!
what if the solutions of barium cloride and sodium sulphate are cold? does the same reaction take place ,.i.e., BaSO4 (ppt)
thank you meritnation for all the interactive videos which you have provided....
on iron nail copper get deposited
a_1st on the lower part of the nail and proceeds to the upper part
b_1st on the upper part of the nail and proceeds to the lower part
c_on the entire surface of the nail
d_on the nail in small patches
and why...........
d_on the nail in small patches
what will happen to ferrous sulphate crystals if put on cold and wet conditions?
what if the solutions are cold?
what do u mean by water of crystallition
is the reaction shown abov is exothermic or endothermic?
why should thistle funnel be dipped in concentrated solution of H2SO4
what is blood and their importance
what if the solutions are cold ?????????
These problems are taken from the book laboratory manual for science class 10.The experiment no. for this problem is 1 ( b ) chemical reaction of burning Mg ribbon in air .This book is available on www.ncert.nic.inThese questions are asked at the end of the experiment
Answer these questions based on experiments
1 - Is there a possibility in the above reaction ?
2 - Is there any similarity LiH, MgO, and K2S ?
plz provide something on saponification reaction
like for preparing soap........
is this reaction exothermic
Why arent the green dots appearing? ive watched each video about 4 times viewd concept 2 times and apparatus and precautions 1 time each ? what should i do?
how do you calssify the reaction?
Q. Zn + CuSO4 ZnSO4 + Cu
The above reaction is an example of a-
(A) Combination reaction (B) displacement reaction
(C) Double displacement reaction (D) decomposition reaction
difference between soaps and detergents
plz give me a balanced equation in which silver recovers from silver nitrate when copper metal reacts with it.
why so slow? :P
xpalin me the practical.
science experiment.can any one help me in science practical
Take around of water in a beaker.Immerse an empty test tube vertically as shown in figure.
You will be surprised to see the shiny surface of test tube inside the water as if surface is silvered.
Fill test tube with water the shiny surface disappears. Reason out why ?
hope u will score 95+...
Q. A man listens a sound of frequency 500 Hz originated from 450 m away place. Then, find the wavelength ().
(i) What is deposited on magnesium strip and what is its colour?
(ii) What colour change takes place in the reaction mixture?