When the following solutions are mixed together, what precipitate (if any) will form? Note: Leave the answer blank if no precipitate will form. (Express your answer as a chemical formula.) Formula of precipitate KOH(aq) + Mn(NO3)2(aq) → |(s) Na,CrO4(aq) + AgNO3(aq) → |(s) NAOH(aq) + KNO3(aq) → (s)

The following chemical reaction takes place in aqueous solution: Mg(NO3)₂(aq) + 2NaOH(aq) → Mg(OH)₂(s) +2 NaNO3(aq) Write the net ionic equation for this reaction. 0 ローロ X 2 On 4

The following chemical reaction takes place in aqueous solution: Fe(NO3)₂(aq) + (NH₁) S(aq) → FeS(s)+2 NHÃNO³(aq) Write the net ionic equation for this reaction. 0 ローロ X 2 4

A 0.450 g sample of impure CaCO,(s) is dissolved in 50.0 mL of 0.150 M HC1(aq). The equation for the reaction is CACO, (s) + 2 HCI(aq) → CaCl, (aq) + H,O(1) + CO,(g) The excess HCl(aq) is titrated by 8.60 mL of 0.125 M NAOH(aq). Calculate the mass percentage of CaCO, (s) in the sample. mass percentage: % Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemsitry Publisher: University Science Books O O 6 hulu 9 MacBook PrO GSearch or type URL % & 4. 6. 8. dele Y. OP H. V MOSISO command option

Fe(II) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(II) to insoluble Fe(III): $$4Fe(OH)+(aq)+4OH−(aq)+O2​(g)+2H2​O(l)4Fe(OH)3​(s)  How many grams of O2 are consumed to precipitate all of the iron in 75.0 mL of 0.0550 M Fe(II)?

The traditional method of analysis for the amount of chloride ion present in a sample is to dissolve the sample in water and then slowly to add a solution of silver nitrate. Silver chloride is very insoluble in water, and by adding silver nitrate, it is possible effectively to remove all chloride ion from the sample. Ag+(aq) + Cl-(aq) → AgCl(s) Suppose a 1.515 g sample is known to contain 27.5% chloride ion by mass. What mass of silver nitrate must be used to completely precipitate the chloride ion from the sample?

W Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Na2CO3 and HCl are mixed. O 2 H* (aq) + CO3²-(aq) → H₂CO3(s) 2 Na* (aq) + CO3²- (aq) + 2 H*(aq) + 2 Cï(aq) → H₂CO3(s) + 2 NaCl(aq) O 2 H* (aq) + CO3²-(aq) → H₂O(1) + CO₂(g) 2 Na* (aq) + CO3²- (aq) + 2 H* (aq) + 2 Cl(aq) → H₂CO3(s) + 2 Na*(aq) + 2 Cl(aq) No reaction occurs.

Fe(II) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(II) to insoluble Fe(III): $$4Fe(OH)+(aq)+4OH−(aq)+O2​(g)+2H2​O(l)4Fe(OH)3​(s)  How many grams of O2 are consumed to precipitate all of the iron in 75.0 mL of 0.0350 M Fe(II)?

Consider the following reaction H2S (g) + FeS(s) + CO2(g) →FeS2(s) + HCO2H(aq) If 2.00 g of each reactant is each dissolved in 250.0 mL of water and all the solutions are mixed together. The final volume was measured to be 750.0 mL.  a)How many grams of CO2 left unreacted?  b) What is the concentration of HCO2H in this solution?

a Choose the correct balanced equation that describes this precipitation reaction: Naz CO3 (ag) + CaCl2 (ag) → CaCO3(s) + NaCl(aq) Naz CO3 (ag) + CaCl2 (ag) → CaCO3(s) + 2NaCl(ag) Naz CO3 (aq) + CaCl2 (ag) → CaCO3 (aq) + 2NACI(ag) Naz CO3 (ag) + CaCl2 (ag) → CaCO3(s) + NaCl(ag) Naz CO3 (ag) + CaCl2 (ag) → CaCO3 (ag) + NaCl(ag) b Choose the correct balanced equation that describes this precipitation reaction: Fe(C,H3O2)2 (aq) + Na, S(ag) → FeS(s) + NaC, H3 O2 (aq) Fe(C2H3 O2)2(ag) + Na2S(aq) → FeS(aq) + NaC, H3 O2 (aq) Fe(C, H3 O2)2 (ag) + Naz S(ag) → FeS(s) + NaC, H3 O2 (aq) Fe(C, H3O2)2 (aq) + Naz S(ag) → FeS(aq) + 2N2C, H3 02 (aq) Fe(C,H3O2)2 (ag) + Na2S(aq) → FeS(s) + 2NAC, H3O2 (ag) c Choose the correct balanced equation that describes this precipitation reaction: KOH(ag) + FeCl2(aq) → Fe(OH)2(s) + KCI(aq) 2КОН(ад) + FeCl, (aq) Fe(ОH)2(ag) + 2KCI(ag) 2КОН (ад) + FeCl, (aq) > Fe(ОH)2 (8) + 2КCI(aд) 2КОН (аq) + FeClz (aq) -> Fe(ОH)2 (8) + КKСІ(ад) о конад) + FeCl, (ag) - Fe(ОH)2(8) +…