What are the ions present in solution of (NH4)2S?

Q: Which of the carbonates given below is unstable in air and is kept in COa atmosphere to avoid…

A: Given Carbonates : (a) BeCO3 (b) MgCO3 (c) CaCO3 (d) BaCO3

Q: I + Cr,0,- Cr" + I, + H2O (acidic)

A: The given redox reaction is  I-+Cr2O72-→Cr3++I2+H2O Oxidation half reaction I-→I2(as oxidation…

Q: 1. What comprises the Group II Anions? 2. Why is 3M HCl added to the precipitate in Group II anions?

A: Anion analysis identify the anions which are present in the sample (i.e. qualitative analysis) and…

Q: a. Cr (9) + H2O (0 the product will contain chromium(III) b. AgNO3 (aq)+ LİOH (aq)

A: 4. a)    • Chromium metal reacts with water to produce Chromium(III) oxide and hydrogen gas.…

Q: equilibrium reactions and equations

A: Precipitation reactions occur when cations and anions in aqueous solution combine to form an…

Q: what is the reaction in FeCl3 + pb(no3)2

A: Iron(III) chloride reacts with Pb(II) nitrate to form the precipitate of Pb(II) chloride and…

Q: Explain why a solution of Fe2 (SO4 2- ) 3 in water is acidic.

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Q: Br OH II III IV

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Q: What product is formed when potassium metal reacts with oxygen gas?          (A) K2O          (B)…

A: Potassium metal reacts with oxygen to form peroxide and superoxide.

Q: What is the pH of 1.5M solution of H2SO4?

A: pH is a measure of strength of H+ ion concentration in a solution. It can be calculated as: pH  =…

Q: quilibrium equation for HClO₂

A: We are given a weak acid HClO₂.

Q: e. HCOOH + MNO4¯→CO, + Mn2* in acidic solution

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Q: Which of the species can be oxidized with 1M HBr? a. Na b. Hg c. Pb d. Mn2+

A: A reducing agent or reductant is species that help in reduction and itself undergoes oxidation . It…

Q: the hydrochloride Salt CHz CH2-NHz HO

A: Aromatic amines are base. When strong acid like hydrochloric acid reacts with such base,…

Q: Explain the steps to determining the presence of Pb2+ ions.

A: We know that Pb2+ ion is group 1 ion. The steps to determine the presence of Pb2+ ion are given in…

Q: What is the formula of a compound that contains Mn2+ and CIO3 ions?

A: Write formula of compound--

Q: would a percipitartion reaction occur between Mn(NO3)2 and K2CO3?

A: Here, we have to determine whether a precipitation reaction occur between Mn(NO3)2 and K2CO3.

Q: What is the oxidation state of bromine in NH4Br? Group of answer choices –1 0 –4 +1

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Q: What tests would you use to identify a solution of FeCl3?

A: FeCl3  – is colour of solution, FeCl3 solution has yellow colour.

Q: A white solid is either Pb(NO3)2 or Zn(NO3)2. If an aqueous solution is prepared, which reagent will…

A: The solids given are Pb(NO3)2 and Zn(NO3)2. Since both the salts are soluble nitrate salts. Hence on…

Q: draw the structure of the possible product forthe following reaction, and how does the oxidation…

A: We have to draw the structure of possible product .and identify how the oxidation state changeg.

Q: what weight of arsenic trioxide (98.73% As2O3) would be used as a sample so that 35.00 mL of 0.1 N…

A: Normality of the solution of iodine can  be calculated by the formula I=w0.04946×V Here,  I is equal…

Q: ZI НCN КОН, Н-о (a) SH (b) O. THE

A:

Q: what is the pH of an aqueous solution of 25.0 mM HClO2 ? given pKa= 1.96

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Q: 1. Identify the following reactions by type and predict the products (any 4): (i) (ii) (iii) (iv)…

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Q: Inorganic. Write the resulting balanced equation and the steps along with reagents in how to…

A: Chemical test to identify aqueous sodium sulphide (Na2S) To aqueous sodium sulphide add few drops of…

Q: What is the oxidation state of S in the (SO3)2- ? *

A: Let the oxidation state of S be x. The value of x can be calculated as follows-

Q: Which of the attached compounds will readily lose CO2 when heated?

A: (c) The carbanion formed in the above reaction is stable, therefore, the compound will readily lose…

Q: What is the oxidation state of X in XgO] -2 O -1 03 01 O 2

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Q: Calculate the pH of a 0.96 M solution of K3PO4. The pKb of PO4^3- = 1.6

A: pH of salts is expressed as :

Q: When solid CrO3is dissolved in water, the solution is or-ange rather than the yellow of H2CrO4. How…

A:

Q: What is the  colour of K[Cr(C2O4)2(H2O)2].2H2O?

A: The complex, K[Cr(C2O4)2(H2O)2].2H2O is called potassium diaquabis(oxalato)chromate(III) dihydrate.

Q: What is the oxidation number of the metal in [Rh(NH3)5Cl](NO3)2?

A: The oxidation number of the metal in the complex is must balance the charge that is due to the rest…

Q: What is (are) the product(s) of the following reaction? DBN Br DBN %3D II

A:

Q: What is the oxidation number for Xe in Хе02F2?

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we…

Q: Salt of anion X gives colorless gas when reacts with dil. HCl acid and can removes the color of…

A: Given statement is :  Salt of anion X gives colorless gas when reacts with dilute HCl acid and can…

Q: Which of the following species will be oxidized by 1M HBr? a. Na b. Hg c. Mn2+

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Q: Identify the oxidizing agent in the following chemical reaction. 2MNO4- + 5H2SO3→ 2MN²+ + 5SO,²- +…

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Q: Choose all of the following that would be colorless in an aqueous solution. Zn2+ O sc3+ Cr3+ Fe2+…

A: Only the ions that have electrons in d orbital and in which d-d transition is possible will be…

Q: Because the oxide ion is basic, metal oxides react readily with acids.(a) Write the net ionic…

A: Net ionic equation is the the one that involves only those ion which are actually causing the…

Q: A solution of potassium chloride is neutral whereas a solution of bismuth (III) chloride is quite…

A: Potassium chloride (KCl) is the salt of a strong acid, HCl and strong base, KOH. Potassium ions (K+)…

Q: What is the acidic equilibrium equation for HC₂H₃O₂?

A: We have to write the acidic equilibrium equation for HC₂H₃O₂

Q: (a) What is a coordinate covalent bond?(b) Is it involved when FeCl3 dissolves in water? Explain.(c)…

A: (a) According to valence bond theory, complex ions have coordinate covalent bonds between ligands…

Q: Which of the following will react with silver nitrate to produce a white precipitate? CI NH2 OCH3…

A: Benzyl chloride gives a white precipitate,. In this reaction we must neutralize the excess hydroxide…

Q: What is the pH of the solution with a hydronium concentration [H3O+] 1.47 x 10-4?

A: The pH of any solution gives the calculative estimate of the concentration of the hydrogen ions…

Q: CN a. CN b. CO,Me C.

A:

Q: What mass of nitrogen is contained in the ammonium nitrate prepared by treatment of 6.69g of aqueous…

A: According to the balanced chemical equation,