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Unanswerd questions under tag chemistry

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0 answers
Calculate the mole fraction of benzene in solution containing 30%by mass in carbon tetrachloride
posted Nov 30, 2020 by Çhèlz Krystlé
  • chemistry
0 votes
0 answers
What is the product name of CH3-CH-CH2-CH3
posted Oct 28, 2020 by Zakria Bukhari
  • chemistry
0 votes
0 answers
calculate the ph of a buffer solution that result when 40ml of 0.1M NH3 diluted to 600 ml with deionized water?
posted Sep 27, 2020 by Hawnaz M Mohammad
  • chemistry
0 votes
0 answers
chemisty question on molecular formular ,empirical formular ,gas and periodic table
posted Jun 7, 2020 by Brenda Wakoli
  • chemistry
0 votes
0 answers
What is the chemical symbol for Manganese?
posted Sep 9, 2019 by Sidharth Malhotra
  • chemistry
  • chemical symbol
0 votes
0 answers
The ozone molecule is made up of three atoms of which gas?
posted Sep 6, 2019 by Samardeep Acharya
  • chemistry
0 votes
0 answers
String theory question
posted Aug 10, 2019 by Comeback Tuesday
  • general
  • chemistry
  • science
  • physics
0 votes
0 answers
Pharmaceutical question
posted Jul 12, 2019 by Comeback Tuesday
  • general
  • chemistry
0 votes
0 answers
osmotic pressure notes
posted Mar 13, 2019 by Sonu Kumar Ray
  • chemistry
0 votes
0 answers
Of four balloons filled respectively with ozone, carbon dioxide, oxygen and ammonia, which gas will make balloon float?
posted Jan 22, 2019 by Chahat Sharma
  • chemistry
  • science
+1 vote
How many isomers are there for C7H7CL [MCQ]
posted Jan 20, 2019 by Subodh Kulkarni
  • chemistry
0 votes
0 answers
If a solution of H2O and NaCl is heated what is the result?
posted Dec 31, 2018 by Anuradha Tabyal
  • chemistry
0 votes
0 answers
What is the ratio of hydrogen atoms to oxygen atoms respectively in a molecule of water?
posted Nov 2, 2018 by Prithvi
  • chemistry
0 votes
0 answers
the process of oxidation of palmitic acid
posted Oct 2, 2018 by Jaspreet Singh
  • chemistry
0 votes
0 answers
What is the melting point of ice in degree Celsius?
posted Sep 28, 2018 by Nimisha K
  • chemistry
  • science
0 votes
0 answers
What is the effect of mixing manganese dioixide with hydrogen peroxide?
posted Sep 17, 2018 by Harshita Dhaliwal
  • chemistry
  • chemicals
0 votes
0 answers
What is the chemical formula for "White Lead"?
posted Sep 11, 2018 by anonymous
  • chemistry
  • chemical formula
0 votes
Which of the following is the name of an element in the periodic table? [MCQ]
posted Sep 10, 2018 by anonymous
  • chemistry
0 votes
Which of these substances is composed of only two elements – hydrogen and oxygen? [MCQ]
posted Sep 3, 2018 by Alok Dev
  • elements
  • chemistry
  • substance
0 votes
0 answers
What role does potassium permanganate have in the process where water is obtained from hydrogen peroxide?
posted Aug 30, 2018 by Deepak Chitragar
  • chemistry
0 votes
0 answers
Why the apple changes its color to brown after few minutes of cutting it?
posted Aug 25, 2018 by anonymous
  • food
  • why
  • chemistry
0 votes
0 answers
Which oxides is formed when potassium metal is burnt in excess air?
posted Aug 25, 2018 by anonymous
  • chemistry
0 votes
0 answers
Which colloidal solution is used in photography?
posted Aug 24, 2018 by Ruchi Kashyap
  • photography
  • general
  • chemistry
+1 vote
0 answers
What does gobar gas contains mainly?
posted Aug 19, 2018 by Suresh Vp
  • chemistry
  • gas
0 votes
0 answers
When CO2 is passed through lime water, then what happens to the color of lime water?
posted Aug 15, 2018 by anonymous
  • chemistry
0 votes
0 answers
What is the chemical formula of Plaster of Paris?
posted Aug 15, 2018 by anonymous
  • chemistry
  • chemical formula
+1 vote
0 answers
pH of blood sample is 7.42. On acidification of 10ml of blood, 5.9ml of CO2(at stp), what is total conc of dissolve CO2?
posted Aug 9, 2018 by Brian Gomez
  • chemistry
0 votes
Which petroleum refinery product has the lowest boiling point? [MCQ]
posted Jul 4, 2018 by Subham Singh
  • petrol
  • chemistry
  • science
0 votes
0 answers
How do substance like con and water move in and out of the cell
posted Jun 29, 2018 by Golu Sitpara
  • chemistry
  • science
0 votes
0 answers
An aqueous solution contains 0.4% urea and 3.42% sugar by mass, calculate the osmotic pressure of solution at 27°C?
posted Apr 22, 2018 by Neel Kamal
  • chemistry
0 votes
0 answers
what is the volume of gas at 0 degree celcius
posted Mar 29, 2018 by Rajan Chauhan
  • chemistry
0 votes
0 answers
please help me
posted Mar 11, 2018 by anonymous
  • chemistry
  • physics
  • general
  • electrochemistry
0 votes
0 answers
Check the following image and help me with the electrochemistry question?
posted Feb 9, 2018 by Anks Great
  • electrochemistry
  • physics
  • chemistry
0 votes
0 answers
Why are the nuclei of some atoms unstable?
posted Jan 22, 2018 by Munni Narang
  • chemistry
  • science
0 votes
0 answers
What is the definition of Chemistry?
posted Jan 14, 2018 by Ashutosh Negi
  • definition
  • chemistry
0 votes
0 answers
What is the method to convert 0.19 into LN 0.19?
posted Jan 1, 2018 by Akhilesh Negi
  • chemistry
0 votes
0 answers
How do the atoms in a water molecule stick together?
posted Nov 2, 2017 by Alivia Clark
  • science
  • water
  • chemistry
+1 vote
0 answers
What happens to your voice when you inhale hydrogen or helium gas?
posted Oct 26, 2017 by Panchika Trivedi
  • science
  • gas
  • human
  • chemistry
0 votes
0 answers
What is a Periodic Table in chemistry and why it is called Mendeleev Periodic table?
posted May 31, 2017 by anonymous
  • chemistry
+2 votes
0 answers
What is the another name for Fire Gas?
posted Jan 27, 2017 by anonymous
  • science
  • chemistry
+2 votes
0 answers
Why potassium nitrate is used in fertilizer?
posted Jan 5, 2017 by Kavyashree
  • chemistry
  • fertility
  • uses
+1 vote
0 answers
What happed to the properties of Helium when it is cooled to almost absolute zero?
posted Jul 5, 2016 by Sunita
  • science
  • chemistry
+2 votes
0 answers
Because of what chemical element the presence of the Glass color is deep blue.
posted Apr 21, 2016 by Debolina Charaborthy
  • science
  • chemistry
0 votes
0 answers
4 new elements added to the periodic table? Can someone please provide the details of these elements?
posted Jan 5, 2016 by Amit Kumar Pandey
  • chemistry
  • science
+1 vote
0 answers
Which scientist has developed the periodic table to arrange all the elements in a structured way?
posted Apr 30, 2015 by anonymous
  • personality
  • chemistry
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