How do you balance chemical equations.. Question will come.

Question

anonymous · Answer

$$AgNO _{3} + MgCl _{2} \rightarrow AgCl + Mg(NO _{3})_{2}$$

wolfe8 · Answer

What do you know about balancing equations?

anonymous · Answer

2AgNO3+MgCl2→2AgCl+Mg(NO3)2

anonymous · Answer

make each of the element have the same ratio of them on both sides of the equation. The reactants and the products. Take for example in your question AgNO3+MgCl2→AgCl+Mg(NO3)2

NO3 in AgNO3 ( reactant ) vs (NO3)2 in Mg(NO3)2
What is their different ?
The ratio of the $$NO _{3}^{-}$$ polyatomic ion in the reactants site to that of the $$NO _{3}^{-}$$ polyatomic ion in the products site is 
1:2
So we will have to put 2 in the front of AgNO3 to balance the $$NO _{3}^{-}$$  polyatomic ions on each side of the equation. 

Try to play around with the numbers and I am sure you will be able to balance equations in no time.

The key thing in Balancing Equations is Practice,Practice,Practice !

anonymous · Answer

Thanks.. This was the only one I had trouble with in 46 problems ugg.