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Question

A chemical equation is said to be balanced if number of ________.

The correct answer is

Atoms are the same in both sides

Since mass is conserved, this means that the total number of atoms of each element must be the same on both sides of the equation. Atoms are the same in both sides - This directly reflects the Law of Conservation of Mass.

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Important Questions from Structure of Atom

  1. How many moles of He atoms are present in its 20 u mass ?
  2. Which of the following electron transition in hydrogen atom will require largest amount of energy?

  3. A species having 8 electrons in the third shell is very reactive while the other species having 8 electrons in the third shell is very inactive they are :

  4. Which of the following is the general formula for saturated hydrocarbons?

  5. Which one of the following is the average atomic mass of chlorine atom?

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