Balanced reaction is
1 FeCl2 (aq) + 2 KOH (aq) ............> 1 Fe(OH)2 (s) + 2 KCl (aq)
this is precipitation reaction.
one mole FeCl2 react with 2 mole KOH to form 1 mole Fe(OH)2 and 2 mole KCl.
Complete the following reaction: H3PO4 (aq) + KOH(aq) → H3PO4 (aq) + 3 KOH (aq) + 3 H2O (1) + K3PO4 (aq) H3PO4 (aq) + KOH(aq) → H2 (g) + H20 (1) + KPO4 (aq) 2 H3PO4 (aq) + 3 KOH(aq) + 3 H20 (1) + 2 K3PO4 (aq) H3PO4 (aq) + KOH (aq) → H20 (1) + K3PO4 (aq) H3PO4 (aq) + KOH(aq) → H30 (1) + KPO4 (aq)
. Consider the endothermic reaction: Fe3+(aq) + Cl-(aq) → FeCl2+(aq). Use Le Châtelier’s principle to predict how the equilibrium concentration of the complex ion FeCl2+ will change when: (3.1) Fe(NO3)3 is added (3.2) Cl- is precipitated as AgCl by addition of AgNO3 (3.3) The temperature is increased (3.4) A catalyst is added (3.5) The pressure of the system is increased
Consider the reaction Fe3+(aq) + Cl-(aq) FeCl2+(aq). If Ag+(aq) is added, the silver ion will react with (Cl-, H2O, Fe3+) to form a precipitate, which will (decrease, increase, or not change) the concentration of reactants and drive the reaction(to the left, to the right, or neither one way or the other). When this happens, the value of Kc will be(lower, higher, or constant).
Given a balanced chemical equation between H2SO4(aq) and KOH(aq) H2SO4(aq) + 2 KOH(aq) → K2SO4(aq) + 2 H2O(l) What volume (in mL) of 0.33 M H2SO4(aq) solution is necessary to completely react with 110 mL of 0.76 M KOH(aq)? Note: (1) The unit of volume of H2SO4(aq) is in mL (2) Insert only the numerical value of your answer (do not include the units or chemical in your answer).
In the following reaction, which element was reduced? Fe(s) + PbCl2(aq) FeCl2(aq) + Pb(s) Fe Pb осі None of these, this is not a redox reaction
Classify each chemical reaction: Reaction Type FeCl2(aq) + Bas (aq) → BaCl2(aq) + FeS (s) choose one C12(g) + 2KI (aq) → 2KCl(aq) + 1,(s) choose one Mg(s) + F2(g) → MgF2(s) choose one o ?
Predict if the following reactions will happen or not, answer with “yes” or “no”. KClO4(aq) + NaNO3(aq) KOH(aq) + CuCl2(aq) NH4Cl(aq) + FeSO4(aq) Mg(s) + FeCl2(aq) Cu(s) + MnClO3(aq)
Q8.1 1 Point HS (aq) + KCN (aq) -> KOH (aq) + HCN (aq) Which substance is the acid in this reaction? O H2S (aq) O KCN (aq) O KSH (aq) OHCN (aq) Q8.2 1 Point H2S (aq) + KCN (aq) -> KOH (aq) + HCN (aq) Which substance is the conjugate acid in this reaction? O H2S (aq) 0 KCN (aq) O KSH (aq) 0 HCN (aq)
Q8.3 1 Point H2S (aq) + KCN (aq) -> KOH (aq) + HCN (aq) Which substance is the conjugate base in this reaction? O H2S (aq) O KCN (aq) O KSH (aq) OHCN (aq) Q8.4 1 Point H2S (aq) + KCN (aq) -> KOH (aq) + HCN (aq) Which substance is the base in this reaction? O H2S (aq) Ô KCN (aq) O KSH (aq) OHCN (aq) O HCN (ag) Q8.5 1 Point HAS (aq) + KCN (aq) -> KSH...
For the reaction Fe(s) + 2HCl(aq) FeCl2(5) + H2(g) AH° = -7.4 kJ and AS° = 107.9 J/K The equilibrium constant for this reaction at 281.0 K is Assume that AHº and ASº are independent of temperature.