Questions asked by Anjali_Sharma

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• What are isotones?
  
• Why does the color of sugar turns black when heated in a dry test tube for sometime? Is it thermal decomposition?
  
• Does light contain matter?
  
• Snow and Ice are both solid forms of water,then why doesn't snow have such a solid structure as ice and why do their colors differ? Even sometimes we see snowy white color in some parts of an ice cube,but snow doesn't appear transparent from anywhere.why?
  
• Can we say that Tension is also a form of normal reaction? as whenever we apply force on a wire or rope,it applies counter force on us which is tension,which is perpendicular to us.
  
• With what exponent the power of any number becomes 0? Like we know that (any number)^0=1,so what will be the value of x in (any number)^x=0?
  
• How can we know that which element is more electronegative than other ? I've never come across any such formula or trick for this,except learning it by practice. Please tell if you know any.
  
• How can you classify an element into metal or non metal on the basis of chemical properties?