1) Na₂S 2) (NH₄)₂CO₃ 3) KHSO₃ Thanks alot everyone!, i really appreciate all the help!

can you help me with this question? identify the solid product that forms when the following aqueous solutions are mixed: CoCl2 (aq) + Na2S(aq) - the big numbers are subscripts a.CoS b.NaCL c.CoS and 2NaCl d. no...

a. HNO2 b. Na2S c. NaHS d. NH4F e. NH4Cl Thanks!

a) NH4Br b) NaNO3 c) NH4NO3 d) NaHSO4 e) Na2S there can be more than one answer

a. NH4Cl b. CH4 c. NaHS d. Na2S e. NH4F

1.How many milliliters of 0.10 M Na2S solution are required to precipitate all the Nickel, as NiS, form 25.0mL of 0.20 M NiCl2 Solution? 2.How many grams of Barium Nitrate are required to precipitate all of hte sulfate ions present in the 15.3 ...

1) KCl, Al(NO3)3 2) Na2S, CuCl2 3) NaOH, KNO3 4) Ni(NO3)2, Mg(NO3)2 5) all of these Really bad at the theory of this portion of chemistry so if you could explain the theory it would be great. Thanks If 0.1 M aqueous ...

i need help for this quwstion....can't figure out anyhow..so the question is " All the following are strong electrolytes in aqueous solution EXCEPT a. NH4Cl. b. HNO2. c. NaHS. d. Na2S. e. NH4F. .....thanksssssssss

So there's precipitation, acid-base, gas forming, and redox.. Can anyone tell me how to tell the difference? Examples... Precipitation HCl (aq) + AgNO3 (aq) --> AgCl (s) + HNO3(aq) Acid-base HC2H3O2 (aq) + KOH (aq)--> ...

A. Na2S, FeCl3 B. NaOH, KNO3 C. KCl, Al(NO3)3 D. Ni(NO3)2, Mg(NO3)2 E. NaOH, HCl

1. What is the molarity of an aqueous solution containing 43.1 g of glucose (C6H12O6) in 2.1 L of solution? answer in Molarity 2. What is the molarity of a bleach solution containing 7.2 g of NaOCl per liter of bleach? 3. Calculate the ...

If 0.1 M aqueous solutions of the following pairs of substances are mixed together, which pair could result in the formation of a precipitate? A. Na2S, FeCl3 B. NaOH, KNO3 C. KCl, Al(NO3)3 D. Ni(NO3)2, Mg(NO3)2 E. NaOH, HCl

1) A chemist needs 734 mL of 3.5 M H2SO4. What volume of 12 M H2SO4 must be mixed with water to form this solution? 1. 0.2141 mL 2. 2517 mL 3. 7.75 mL 4. 214.1 mL 5. 2569 mL 6. 0.005 mL 2) A solution made by dissolving LiCl in water to ...

A solid was found to be highly soluble in water. Treating separate portions of a solution of this solid with NaCl, NaBr, Na2SO4, NaI, Na2CO3, Na3PO4, NaOH, and Na2S produced no precipitates. Treatment of an aqueous solution of this solid with acid...

1. What is the % nitrogen by weight in 2.662 mol of ammonium sulfide? Answer in units of %. 2. How many atoms of mercury are present in 7.3 cubic centimeters of liquid mercury? The density of mercury is 13.55 g/cc. An- swer in units of ...

A solid was found to be highly soluble in water. Treating separate portions of a solution of this solid with KCL, KBr, K2SO4, K2CO3, L3[P4, KOH, and K2S produced no precipitates. Treatment of an aqueous solution of the substance with an acid ...

What would be he products if the following compounds were mixed in an aqueous solution? (I know how to do it with two ionic compounds; the metals each take each other's non-metals, but how would you do it with a polyatomic ion?) NH3 + Na2S...

I have problems solving this question/ Can you help me? In a qualitative analysis for the presence of Pb2+, Fe2+. and Cu2+ ions in aqueous solution, which of the following will allow the separation of Pb2+ from the other ions at room ...

1. The reaction of magnesium and oxygen to form magnesium oxide is used to produce light in disposable flash bulbs. 1Mg₂₍s₎ + 1O₂₍g₎ ----> 2MgO₍s₎ 2. Chlorine gas reacts with an aqueous solution of sodium iodide. ...

PART OF A STUDY GUIDE I AM ALLOWED TO USE ON FINAL TOMORROW. I GET NO GRADE, BUT THE ANSWERS ARE EXTREMLELY HELPFUL. MERRY CHRISTMAS!!! In the balanced molecular equation for the neutralization of sodium hydroxide with sulfuric acid, the ...

Consider these three reactions (in aqueous solution): a) CuCl2 + 2 Fe Cu + 2 FeCl2 b) 2 NaOH + H2SO4 Na2SO4 + 2 H2O c) CuCl2 + Na2S 2 NaCl + CuS How are these reactions best described? (A) a) an oxidation-reduction reaction b) a ...

If 0.1 M aqueous solutions of the following pairs of substances are mixed together, which pair could result in the formation of a precipitate? A. Na2S, FeCl3 B. NaOH, KNO3 C. KCl, Al(NO3)3 D. Ni(NO3)2, Mg(NO3)2 E. NaOH, HCl

Suppose that aqueous solutions of barium nitrate and potassium carbonate are mixed. What precipitates? Insoluble sulfide compounds are generally black in color. Which of the following combinations could yield a black precipitate? Na2S + ...

Suppose that aqueous solutions of barium nitrate and potassium carbonate are mixed. What is the name of the compound or compounds that precipitate?_________________ Can anyone help me figure this one out pls. i have a test coming up and this ...

Draw an atomic level picture of Na2SO4 dissolved in H2O and then describe in words what your picture looks like. Be sure to think about the initial solid state structure of this salt and the process it goes through to become an aqueous salt ...

Each participant will receive ten test tubes. Each numbered test tube will contain a different inorganic salt dissolved in water or one of the test tubes might contain just water. The problem is to discover which inorganic salt is contained in ...

Q1) Potassium nitrate has a solubility of 153g/100g water at 75C(167F), and 37g/100g at 25C (77F). How much water is needed to dissolve 85g potassium nitrate at 75C (167F)? How much potassium nitrate will crystallise out if the solution is ...

I've just learned these today and I'm having trouble with them. I'll write the word problem and then write what I got as an answer, hopefully somebody can tell me what I'm doing wrong and give me the correct answers. 1. ...

A solid was found to be highly soluble in water. treating separate portions of a solution of this solid with KCL ,KBr, KI, K2SO4, K2CO3, K3PO4, KOH, and K2S produced no precipates,. Treatment of an aqueous soliton of the substance with an acid ...

In the following chemical reaction, NaOH (aq) + HCl (aq) --> NaCl (aq) + H2O (l) Which of the following statements is NOT true? Aqueous sodium hydroxide produces solid sodium chloride when combined with aqueous hydrochloric acid...

Here are the solutions each of the twelve COULD be: .05 NH3 Aqueous Ammonia 6M H2SO4 Sulfuric Acid .010M HCl Hydrochloric Acid .5M Pb(NO3)2 Lead(II) Nitrate .2M BaCl2 Barium Chloride .001M NaOH sodium ...

I need to answer this question for my webassign homework but it needs to be typed in a certain way. I dont know what i am doing wrong. I think ive followed all of the instructions. I even added the aqueous and insoluble signs but its still wrong. ...

Here are the solutions each of the twelve COULD be: .05 NH3 Aqueous Ammonia 6M H2SO4 Sulfuric Acid .010M HCl Hydrochloric Acid .5M Pb(NO3)2 Lead(II) Nitrate .2M BaCl2 Barium Chloride .001M NaOH sodium hydroxide .1M AgNO3 Silver Nitrate ....