How Do I Solve Double Displacement Reactions for Chemistry Homework?

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SUMMARY

This discussion focuses on solving double displacement reactions in chemistry, specifically balancing equations and identifying products. The user seeks assistance with three specific reactant pairs: KOH + H2SO4, FeS + HCl, and NaCl + H2SO4. The community provides feedback on the user's attempts, confirming that the balanced equations for KOH + H2SO4 and FeS + 2HCl are correct, while noting issues with the product listings for CaBr2 + KOH and Cu(OH)2 + HC2H3O2. The discussion highlights the importance of understanding reactants and products in chemical reactions.

PREREQUISITES
  • Understanding of double displacement reactions
  • Knowledge of balancing chemical equations
  • Familiarity with common acids and bases, such as H2SO4 and KOH
  • Basic grasp of chemical nomenclature and valency
NEXT STEPS
  • Study the principles of double displacement reactions in detail
  • Practice balancing chemical equations with various reactants
  • Learn about the solubility rules for predicting reaction outcomes
  • Explore resources on identifying products of chemical reactions
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Chemistry students, educators, and anyone seeking to improve their understanding of chemical reactions and balancing equations.

gasstationqueen
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I am so stressed right now and am on the verge of a nervous breakdown. My chemistry homework is just really confusing and I need to pass this class, could someone please help me out? I need to hand this in tomorrow and I have already answered the questions myself but I feel like my answers are all wrong. I would appreciate it if someone could show me how to solve these so I know that when I hand this in tomorrow it won't bring my grade down even lower.

Complete and balance following equations: (find reactants and products)
1.Reactants: KOH+H2SO4
2.Reactants: FeS+HCl
3.Reactants: NaCl+H2SO4

If reaction occurs, list products. If no reaction occurs, state "no reaction":
1.Reaction: CaBr2+KOH
2.Reaction: Cu(OH)2+HC2H3O2
3.Reaction: FeS+2HCl
4.Reaction: Ca(NO3)2+2HClMy attemps: 1. H2SO4(aq) + 2KOH(aq) --> K2SO4(aq) + 2H2O(l)
2. FeS + 2HCl ------> FeCl2 + H2S
3. 2NaCl + H2SO4 = Na2SO4 + 2HCl(g)

1. CaBr2 + KOH = CaOH + KBr2
2. Cu(OH)2 + 2 HC2H3O2 = Cu(C2H3O2)2 + 2 H2O
3. ?
4. No reaction ?

Idk what it nmeans by listing products :/
 
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gasstationqueen said:
I am so stressed right now and am on the verge of a nervous breakdown. My chemistry homework is just really confusing and I need to pass this class, could someone please help me out? I need to hand this in tomorrow and I have already answered the questions myself but I feel like my answers are all wrong. I would appreciate it if someone could show me how to solve these so I know that when I hand this in tomorrow it won't bring my grade down even lower.

Complete and balance following equations: (find reactants and products)
1.Reactants: KOH+H2SO4
2.Reactants: FeS+HCl
3.Reactants: NaCl+H2SO4

If reaction occurs, list products. If no reaction occurs, state "no reaction":
1.Reaction: CaBr2+KOH
2.Reaction: Cu(OH)2+HC2H3O2
3.Reaction: FeS+2HCl
4.Reaction: Ca(NO3)2+2HCl
Please post your answers - forum rules!
 
What part do you struggle with exactly? Part where you need to find the products? Or part where you need to balance the equation?
 
Hypercube said:
What part do you struggle with exactly? Part where you need to find the products? Or part where you need to balance the equation?
Both, but finding products in particular. I swear I'm not an airhead lol, I had a medical issues which caused me to miss school and now I'm so behind. :cry:
 
haruspex said:
Please post your answers - forum rules!
Sorry, I'm a new member so I wasn't aware of the rules. I just posted my attempts.
 
gasstationqueen said:
1. H2SO4(aq) + 2KOH(aq) --> K2SO4(aq) + 2H2O(l)
2. FeS + 2HCl ------> FeCl2 + H2S
I'm not much of a chemist, but those look right to me.
gasstationqueen said:
3. 2NaCl + H2SO4 = Na2SO4 + 2HCl(g)
I don't think so. See http://www.chemguide.co.uk/inorganic/group7/halideions.html.
gasstationqueen said:
CaBr2 + KOH = CaOH + KBr2
A problem with the valencies?

The rest I leave to others.
 
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