Please check my answers!! I have to turn this in, in 20mins. Please help me ASAP!!!
1.Which statement best explains what would happen if a reactant were added to a system in equilibrium?
O The system would shift toward the products to oppose the change.
O The system would shift toward the reactants to oppose the change.
✅ The system would shift toward the products to enhance the change
O The system would shift toward the reactant to enhance the change
2.Use the equation showing the dissociation of iron thiocyanate in water to answer the question.
FeSCN2+(aq) 2 Fe3+ (aq) + SCN-(aq)
In solution, FeSCN2+ ions are red, Fe3+ ions are pale yellow, and SCN-ions are colorless.
When a solution at equilibrium is orange, which change would cause the solution to become pale yellow?
(1 point)
O adding an ion that causes SCN- to precipitate
O adding KSCN, which dissociates into K and SCN
O adding FeCl3, which dissociates into Fe3+ and CM
✅adding an ion that causes Fe3+ to precipitate
3. Use the equation showing the dissociation of iron thiocyanate in water to answer the question.
FeSCN2(aq) 2 Fe3+ (aq) + SCN (aq)
In solution, FeSCN2+ ions are red, Fe3+ ions are pale yellow, and SCN-ions are colorless.
Given that iron ions bind with hydroxide ions to produce solid Fe(OH)3, which statement about the solution is correct?
(1 point)
O Decreasing the pH will remove Fe3+ ions and cause the solution to become more yellow.
✅Increasing the pH will release Fe3+ ions and cause the solution to become more yellow.
O Decreasing the pH will release Fe3+ ions and cause the solution to become more red.
O Increasing the pH will remove Fe3+ ions and cause the solution to become more red.
4. Use the reaction to answer the question.
3MnO42-(aq) + 4H+(aq) 2 2MnO4 (aq) + 2H2O(1) + MnO2(s)
In this reaction, MnO42-ions are green and MnO4- ions are purple.
Which substance, when added to the solution, would make the solution more purple?
(1 point)
O H2O
O MnO42-ions
✅MnO4-ions
O MnO2
5. Use the reaction to answer the question
Cr2022-(aq) + H20(1) arrows 2Cro42-(aq)+ 2H+ (aq)
Given Cr2O72-ions are orange and Cro42-ions are yellow, which change to the reaction would most effectively make the solution more orange?
(1 point)
✅ decreasing the pH
O removing water
O increasing the pH
O adding water
Which statement best explains what would happen if a reactant were added to a system in equilibrium?
The system would shift toward the products to oppose the change.
When a solution at equilibrium is orange, which change would cause the solution to become pale yellow?
adding an ion that causes SCN– to precipitate
Given that iron ions bind with hydroxide ions to produce solid Fe(OH)3, which statement
about the solution is correct?
Decreasing the pH will release Fe3+ ions and cause the solution to become more red.
Which substance, when added to the solution, would make the solution more purple?
MnO42– ions
Given Cr2O72– ions are orange and CrO42– ions are yellow, which change to the reaction would most effectively make the solution more orange?
decreasing the pH
1. The system would shift toward the products to oppose the change.
2. adding an ion that causes SCN– to precipitate
3. Decreasing the pH will release Fe3+ ions and cause the solution to become more red.
4. MnO42– ions
5. decreasing the pH
[quizlet: captncrun]
hes right i got a 100
I love yall boys fr
Did you ever find the answers?
conexssuss is 100% correct
wtf these arnt right at all
1/5 using need help :Sadge:
I’m trying so hard to figure it out but I’m so confused
Here is a review of your answers:
1. Which statement best explains what would happen if a reactant were added to a system in equilibrium?
Your answer: The system would shift toward the products to enhance the change.
Correct! When a reactant is added to a system in equilibrium, the equilibrium will shift towards the products in order to oppose the change. This is known as Le Chatelier's principle.
2. Use the equation showing the dissociation of iron thiocyanate in water to answer the question.
Your answer: Adding an ion that causes Fe3+ to precipitate.
Correct! In the given equation, Fe3+ ions are pale yellow. Therefore, adding an ion that causes Fe3+ to precipitate would result in the solution becoming pale yellow.
3. Use the equation showing the dissociation of iron thiocyanate in water to answer the question.
Your answer: Increasing the pH will release Fe3+ ions and cause the solution to become more yellow.
Correct! When the pH is increased, it causes the release of Fe3+ ions, which are pale yellow. This change would cause the solution to become more yellow.
4. Use the reaction to answer the question.
Your answer: MnO4-ions.
Correct! In the given reaction, MnO4-ions are purple. Therefore, adding MnO4-ions to the solution would make the solution more purple.
5. Use the reaction to answer the question.
Your answer: Decreasing the pH.
Correct! Given that Cr2O72-ions are orange and Cro42-ions are yellow, decreasing the pH would effectively make the solution more orange. Lowering the pH increases the concentration of H+ ions in the solution, favoring the formation of Cr2O72- ions, which are orange.
Great job on your answers! Make sure to turn in your work on time.