I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
You balance double replacement equations by pairing each cation with the anion from the other compound in the correct ratios.
Example
Write a balanced equation for the reaction between Fe(NO₃)₂ and Na₃PO₄.
Solution
Identify the cations and anions in each compound:
Fe(NO₃)₂ has Fe²⁺ and NO₃⁻
Na₃PO₄ has Na⁺ and PO₄³⁻
Pair up each cation with the anion from the OTHER compound:
Fe²⁺ pairs with PO₄³⁻
Na⁺ pairs with NO₃⁻
Write two new (CORRECT!!) formulas using the pairs from
Step 2.
Fe₃(PO₄)₂, since Fe is +2 and PO₄ is -3
NaNO₃ since Na is +1 and NO₃ is -1
Write the unbalanced equation
Fe(NO₃)₂ + Na₃PO₄ → Fe₃(PO₄)₂ + NaNO₃
Balance the equation.
The Fe₃(PO₄)₂ has 3 Fe and 2 PO₄ on the right, so you need 3 Fe and 2 PO₄ on the left:
3Fe(NO₃)₂ + 2Na₃PO₄ → Fe₃(PO₄)₂ + NaNO₃
Now we have 6 NO₃ on the left, so we need 6 NO₃ on the right.
The balanced equation is
3Fe(NO₃)₂ + 2Na₃PO₄ → Fe₃(PO₄)₂ +6NaNO₃
Here is a video to help with balancing double replacement reactions.
Show more
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more