Questions asked by Sharoon Aftab

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• Why noble gases are non-reactive?
  
• Why soft drink is a mixture but water is a compound?
  
• How to calculate mass of the sun? Please tell in a simple methamatical way.
  
• How to factorize an expression like: By making factors?
  
• How does the functional unit of Kidney works (Nephron)? Give a detailed explanation
  
• What is a gerund?
  
• How to find median and a mode of arranged and non-arranged data respectively?
  
• Whats the difference between glycol and glycoxyl?
  
• Whats the best way to memorize chemistry equations?
  
• What is difference between mass and weight. In general and scientific Defination?
  
• Please explain this?
  
• How to deal with Math phobia?
  
• Do we know everything about universe?
  
• Can you derive #E=mc^2# ?
  
• Explain this: I read that to factorize you need to find numbers that adds or minus to the middle value and multiply to give the last value. But how did this come up? The middle quantities when multiplied don't make up 12. Please explain this.
  
• If sum of the cube roots of unity is 0 Then prove that Product of cube roots of unity =1 Anyone?
  
• How can we identify ethane from ethene?
  
• If a compound having four carbon atoms has a tripe bond in it. How many hydrogen atoms are there in it. AS: H3C-CH2-C --- (triple bond)CH What is the name of the compound? please explain the way you found that out.
  
• What is substitution reaction of alkanes?
  
• What is hydrogenation of alkenes?
  
• What is the reduction of alkyl halids?
  
• According to the theory that Humans have developed from apes. Then why do apes still exist? or is it mean that the generations ahead of these apes will become human?
  
• Why February has only 28 days?
  
• Prove that: (1+w)(1+w^2)(1+w^4)(1+w^8).......2^n factors =1 ?
  
• Find the cube roots of 8?
  
• Solve #x^2-11x=152# ?
  
• Use synthetic division to solve: #(x^2+7x-1)# divided by #(x+1)# ?
  
• Solve by synthetic division.? #(4x^3-5x+15)# divided by #(x+3)#
  
• What is the logic behind divedendo-componendo operations.?
  
• Find the third proportion? 6,12
  
• How would you make partial fractions of? #(7x-9)/((x+1)(x-3))# And #(x-11)/((x-4)(x+3))#
  
• How do find the median of this?
  
• What are the rules to make partial fractions?
  
• How many watt-hours are there in 1000 joules? Please explain mathematically.
  
• Calculate variance: 10,8,9,7,5,12,8,6,8,2 ?
  
• What will be the pH of a 0.02 M Ca(HCO)3 ?
  
• What will be the pOH of a 0.02 M of Ca(OH)2 ?
  
• Whether the triangle with sides 3cm, 4cm, and 5cm is a right angle, obtuse or acute angle?
  
• Find P, if the roots of the equation #x^2+3x+p-2 = 0# differ by #2# ?
  
• 20 people shake hands with each other. How many handshakes will be there in total?
  
• Prove the multiplicative inverse property of the complex numbers?
  
• Can somebody explain this definition? **The radian is the plane between two radii of a circle which cut off on the circumference an arc, equal in length to the radius**
  
• Actual yield is always less than theoretical yield?. Give two reasons
  
• Calculate the no. of molecules present in 34g of H3PO4?
  
• Calculate the mass in kilograms of #2.6xx10^23# molecules of #"SO"_2# ?