Solving Hard Chemistry Equations

  • Thread starter dagg3r
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In summary, the conversation is about checking the accuracy of written chemical equations involving Fe3+, H20, HCl, KSCN, and KF. The equations provided are not fully balanced and may not accurately reflect the actual chemical reactions without knowing the specific conditions.
  • #1
dagg3r
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CHEM EQUAtioNS HARD!

hi can anybody show me if i am writing these equations right or not thanks

Fe3+ + 6H20 -> F2(H20)6 3 +


Fe(H20)6 3+ + h20 -> Fe(h20)5(OH) 2+ + H30+

when added HCL

Fe(H20)5(OH) 2+ + 4Cl- -> Fe(OH)cl4 2- + 5H20

when added KSCN

Fe(OH)cl4 2- + SCN- -> Fe(Oh)SCN- + KCl4 2-

when added KF

Fe(OH)SCN- + KF -> KSCN + Fe(Oh)F-
 
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  • #2
dagg3r said:
hi can anybody show me if i am writing these equations right or not thanks
We can only check if they are balanced and possible. Whether they will really happen will depend on the conditions - so without the actual question, it would be hard to tell truth from fiction.

Please post the original question.

Fe3+ + 6H20 -> F2(H20)6 3 +


Fe(H20)6 3+ + h20 -> Fe(h20)5(OH) 2+ + H30+
Close, but not really balanced.

when added HCL

Fe(H20)5(OH) 2+ + 4Cl- -> Fe(OH)cl4 2- + 5H20

when added KSCN

Fe(OH)cl4 2- + SCN- -> Fe(Oh)SCN- + KCl4 2-
This is really wrong. Recheck it.

when added KF

Fe(OH)SCN- + KF -> KSCN + Fe(Oh)F-
Mistake carried over from previous step.
 
  • #3


Hi there,

It looks like you are on the right track with these equations! However, there are a few things to keep in mind when solving hard chemistry equations:

1. Make sure your chemical formulas are balanced. This means that the number of atoms of each element on the reactant side should equal the number of atoms on the product side.

2. Pay attention to the charges of the ions. In your first equation, the Fe3+ ion should have a charge of 3+ on both the reactant and product side. In the second equation, the H3O+ ion should have a charge of 1+ on both sides.

3. When adding HCl, you are correct in forming Fe(OH)Cl4 2- as a product. However, the correct formula for this compound should be Fe(OH)2Cl2.

4. When adding KSCN, you are correct in forming Fe(OH)SCN- as a product. However, the correct formula for this compound should be Fe(OH)SCN.

5. Lastly, when adding KF, you are correct in forming Fe(OH)F- as a product. However, the correct formula for this compound should be FeF2.

Remember to always double check your chemical formulas and charges to ensure that your equations are correct. Keep up the good work!
 

1. How do I know which formula to use for a given chemical equation?

In order to determine the correct formula to use, you must first identify the type of reaction taking place (i.e. synthesis, decomposition, single displacement, double displacement, or combustion). Once you have identified the type of reaction, you can use the corresponding formula to balance the equation.

2. What are the steps for solving a hard chemistry equation?

The steps for solving a hard chemistry equation are as follows:
1. Write out the unbalanced equation.
2. Determine the type of reaction taking place.
3. Use the appropriate formula to balance the equation.
4. Balance the elements one at a time, starting with the most complex molecule.
5. Check to make sure all elements and charges are balanced.
6. If necessary, multiply the entire equation by a whole number to get rid of any fractions.
7. Check your work to make sure the equation is fully balanced.

3. What is the importance of balancing chemical equations?

Balancing chemical equations is important because it helps to show the conservation of mass and charge in a chemical reaction. It also ensures that the reactants and products are in the correct proportions and allows for accurate calculations of reactant and product quantities.

4. How do I handle equations with polyatomic ions?

To handle equations with polyatomic ions, treat the entire ion as a single unit and balance it as you would any other element. Remember to keep the charges balanced on both sides of the equation and to check your work for accuracy.

5. What are some tips for solving hard chemistry equations efficiently?

Some tips for solving hard chemistry equations efficiently include:
- Start by identifying the type of reaction and using the appropriate formula.
- Balance the most complex molecule first.
- Keep track of the elements and charges on both sides of the equation.
- Check your work for accuracy and make any necessary adjustments.
- Practice regularly to improve your skills and speed in solving equations.

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