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Shital Nayak
Subject: Chemistry
, asked on 8/9/21
What if petrol is kept in a china dish in open ?
Dear Experts please answer the question.
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1
Aditi Sharma
Subject: Chemistry
, asked on 28/8/21
Which one is correct and how?
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2
Shital Nayak
Subject: Chemistry
, asked on 25/8/21
Is burning of methane a double displacement reaction ??
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1
Keerthana Srirangam
Subject: Chemistry
, asked on 23/8/21
Please answer question
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1
Akshat Kumar
Subject: Chemistry
, asked on 22/8/21
What is the chemical name H2SO4 ?
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4
Keerthana Srirangam
Subject: Chemistry
, asked on 22/8/21
Please answer:
a. What happens when metal A is placed in silver nitrate solution?
b. Compare the reactivity of metal C and Zinc.
c. What happens when Silver is placed in the solution of a salt of metal B?
d. Which is the most reactive metal?
e. Arrange the metals in the decreasing order of reactivity
Answer
1
Keerthana Srirangam
Subject: Chemistry
, asked on 22/8/21
Experts please answer this question.
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1
D S Shiva
Subject: Chemistry
, asked on 18/8/21
Difference between physical and chemical changes?
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1
Swoyam Subham Bisoi
Subject: Chemistry
, asked on 18/8/21
Fe3o5 chemical name ##answer pls
Answer
1
Shreya Doli
Subject: Chemistry
, asked on 16/8/21
the question is gas M is formed as a by-product during the manufacture of NaOH. The gas M reacts with
dry slaked lime to give a compound N which is used to make drinking water free from
germs. Identify M and N giving chemical equations of the reactions involved. marks (3)
Answer
6
Shoonya
Subject: Chemistry
, asked on 15/8/21
Number of atoms in sodium molecule
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3
Gurleen Kaur Brar
Subject: Chemistry
, asked on 13/8/21
All the combination reactions are exothermic???
Answer
4
Gurleen Kaur Brar
Subject: Chemistry
, asked on 13/8/21
Mg+O2 reacts to give MgO
This is endothermic reaction ??
Answer
1
Gurleen Kaur Brar
Subject: Chemistry
, asked on 12/8/21
Please answer last two points
Answer
1
Gurleen Kaur Brar
Subject: Chemistry
, asked on 12/8/21
Reaction for this
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Dear Experts please answer the question.
a. What happens when metal A is placed in silver nitrate solution?
b. Compare the reactivity of metal C and Zinc.
c. What happens when Silver is placed in the solution of a salt of metal B?
d. Which is the most reactive metal?
e. Arrange the metals in the decreasing order of reactivity
dry slaked lime to give a compound N which is used to make drinking water free from
germs. Identify M and N giving chemical equations of the reactions involved. marks (3)
This is endothermic reaction ??