. What is the oxidizing agent in the reaction Zn + 2 H+➡️Zn2++H2? 2. In the following chemical reaction, which element is the reducing agent? 2Ag(s)+2 Cl-(aq)+2 H2O(l)➡️2 AgCl(s)+H2(g)+2 OH-(aq) 3. According to the balanced reaction below, calculate the moles of NH3 that form when 4.2 mol of N2H4 completely reacts 3 N2H4(l)➡️4 NH3(g) + N2(g)

Q: A potassium permanganate solution is prepared by dissolving 4.68 g KMnO4 in water and diluting to…

A: Mass of KMnO4=4.68g  Molar Mass of KMnO4=158.034g/mol  No. of moles of KMnO,n=mass of KMnO4Molar…

Q: Consider the following chemical reaction. 3 Zn(C₂H₂O₂)2(aq) + 2 Na3PO4(aq) →→6 NaC₂H3O₂(aq) +…

A: Given A balanced equation of formation of Zn3(PO4)2 from Zn(C2H3O2)2 and Na3PO4. Also, the volume…

Q: When the following equation is balanced properly under basic conditions, what are the coefficients…

A:

Q: A sample of ultrapure silicon was reacted with excess oxidizing yielding SiO₂. After proper…

A: Given that -  Mass of Silicon dioxide SiO2 =  3.1754 g  Percentage of ultrapure silicon = 99.98%…

Q: Magnesium is obtained from sea water. Ca(OH)2 is added to sea water to precipitate Mg(OH)2. The…

A:

Q: The net ionic equation below represents the standardization of potassium permanganate. 5 H2O2 (1) +…

A:

Q: Balance the following reaction in acidic conditions: I2 + HNO3 → 2 HIO3 + 10 NO2 What are the…

A: The reaction given is I2 + HNO3 → HIO3 + NO2  In the above reaction, initially I in I2 is in 0…

Q: If one isn't careful, toxic chloramine gas (NH2CI) can be generated by mixing household bleach…

A: #1:  Here the reactants are NaClO(aq) and NH3(aq) and the products are NH2Cl(g), NaCl(aq) and…

Q: What is the concentration of NaCl in a solution if titration of 15.00 mL of the solution with 0.2503…

A: Given: Volume of NaCl V1= 15.00mL Volume of AgNO3 V2=20.22mL Molarity of AgNO3 M2= 0.2503M To find:…

Q: Aspirin can be synthesized in the lab by combining salicylic acid (C,H,0,) and acetic anhydride…

A: % yield =         = ( Actual yield ÷ Theoretical yield)× 100% Molecular weight of salicylic acid =…

Q: Sugar reacts with concentrated sulfuric acid in an exothermic reaction called the "Carbon Snake"…

A: given mass percent of sulfuric acid solution = 5℅ density of sulfuric acid solution = 1.601 g/ml…

Q: A precipitation reaction occurs when 755 mL of 0.981 M Pb(NO,), reacts with 339 mL of 0.901 M KI, as…

A: In a balanced chemical reaction, when there are 2 or more then 2 reactants are present then the…

Q: 2) Hydrogen peroxide (H2O2) reacts with the permanganate ion (MnO4) in acidic solution according to…

A: a.

Q: Balance the following reaction with the smallest possible integer coefficients. What is the…

A: Please find the file attached for explanation

Q: impurity, for example, when 2 g is dissolved in water and oxidized, then precipitated Fe (OH)3 is…

A:

Q: 4. Balance the following reactions, using coefficients, and label the type of reaction (combination,…

A:

Q: The percentage of protein in most food products is found arbitrarily by multiplying the percentage…

A: One of most important element that is present in protein is nitrogen. In the food product, the…

Q: A neutralization reaction hasthe following unbalanced chemical equation: ? H,PO, (aq) + ? Mg(OH)2…

A:

Q: 9. Phosgenite, a lead compound with the formula Pb2Cl2CO3, is found in ancient Egyptian cosmetics.…

A:

Q: the following acid-base neutralization, 1.68 g of the solid acid HC6H5O (94.12 g/mol) neutralized…

A: Moles of acid = mass / molar mass = 1.68 / 94.12 = 0.01785 approx Since from the reaction, 1 mole of…

Q: Constants Penodic Table Lakes that have been acidified by acid rain ( HNO, and H2SO4) can be…

A: Molarity :-  The number of moles of solute dissolved in one litre of solution is defined as molarity…

Q: When the following skeletal equation is balanced under basic conditions, what are the coefficients…

A:

Q: The Bayer process is the formation of aluminum hydroxide from metallic aluminum and sodium hydroxide…

A: The Bayer process , Al(s)+ 3NaOH(aq) -->Al(OH)3(s) + 3Na(aq)

Q: A car battery is a lead-acid battery. The reaction that occurs when the battery is recharging is a…

A: • The given unbalanced chemical equation is,      PbSO4(g) + H2O(l) →                 PbO2(s) +…

Q: The coefficient of ZnO when the reaction is balanced with the smallest whole number coefficients is…

A: Given, The unbalanced reaction: ZnS + O2  ----> ZnO + SO2

Q: What quantity in moles of precipitate will be formed when 45.6 mL of 0.550 M AgNO3 is reacted with…

A:

Q: Balance the following equation and charges, Cr2O7^-2 + Fe^+2 + H2O --> Cr^+3 + Fe^+3 + OH^-

A:

Q: A car battery is a lead-acid battery. The reaction that occurs when the battery is recharging is a…

A:

Q: 5. The dichromate ion, Cr2O72- reacts with methanol, CH3OH in acidic solution according to the…

A: Final volume = 200 x 3 = 600 mL [Cr2O72-] = 200 x 1 / 600 = 0.33 M [CH3OH] = 200 x 1.875 / 600 =…

Q: Treatment of gold metal with BrF3 and KF produces Br2 andKAuF4, a salt of gold. Identify the…

A: The reaction is, 2Au(s)+2BrF3(l)+2KF(s)→Br2(l)+2KAuF4(s)

Q: When exactly 750.0 mL of a solution containing 0.5840 N of magnesium hydroxide was combined with…

A: Given,  When exactly 750.0 mL of a solution containing 0.5840 N of magnesium hydroxide was combined…

Q: In the molecule HClO4, what is the total of the oxidation numbers of the one hydrogen and four…

A: (a) According to the electroneutrality principle, in a neutral compound                         "The…

Q: B3. What is the coefficient of oxygen gas in this combustion reaction when the equation is correctly…

A: The combustion reaction of organic molecules can be generalized as below-

Q: Oxalic acid (H2C2O4) is an acid widely used in chemical analysis, industry and veterinary…

A: 0.2255 g of a sample of raw oxalic acid is titrated completely with 23.2 mL of a 0.1522 mol/L of…

Q: Sodium metal and chlorine gas can be produced by the electrolysis of molten  Sodium chloride as…

A: The reaction taking place is given as => 2 NaCl (l) --------> 2 Na (l) + Cl2 (g) Given : Mass…

Q: Sulphur trioxide gas is obtained by the combustion of pyrites (FeS,) according to the following…

A: Mass of SO3 = 100 Kg = 100 x 103 gm  Molar mass of SO3 = 80 gm/mole  Molar mass of FeS2 = 120…

Q: A sample of calcium weighing 2g. The calcium was precipitated as calcium oxalate, then it was…

A: Given that,  Weight of a sample of calcium Ws= 2 g Weight of empty crucible = 2.5 g Weight of…

Q: To be able to produce a small amount of CO2 in the laboratory, 35 mL of 0.11 M Na2C2O4 and 20 mL of…

A:

Q: Sodium tripolyphosphate (or STPP), Na5P3010, is used in detergents. It is made by combining…

A:

Q: What is the balanced chemical equation for the reaction used to calculate AH of BaCO,(s)? If…

A: The question asks to write the chemical equation for the formation of BaCO3(s). Before writing the…

Q: Ba(OH)2 x 8H2O(s) + NH4SCN(s) --> BA(SCN)2(s) + H2O(l) + NH3 a.) Balance the equation b.) What…

A: (a) The balanced chemical reaction is given below.

Q: Feco, is) • 2 HCE (aq) - FeCt; (aq) + H,0 () co, () 9.54 g Feco, reacts with 50.0 mL of a 2.74 M HCt…

A:

Q: What is the balanced chemical equation for the reaction used to calculate AH; of CaCO3 (s)? If…

A: In order to calculate the heat of formation of calcium carbonate, a look at the chemical reactions…

Q: Sugar reacts with concentrated sulfuric acid in an exothermic reaction called the "Carbon Snake"…

A: mass of solid carbon produced can be calculated as follows from given data :

Q: What is the theoretical yield, in grams, of aspirin ( C 9 H 8 O 4 ), which has a molar mass of…

A:

Q: 5. The nitrite ion (NO,) in potassium nitrite is changed to the nitrate ion by the action of…

A:

Q: 2) Hydrogen peroxide (H2O2) reacts with the permanganate ion (Mn04) in acidic solution according to…

A: a.) Given reaction is a redox reaction , so it would be balanced using half reaction method.  b.)…

Q: Addition of NaOH to a Cu(NO3)2 solution results in the precipitation of Cu(OH)2.               2…

A:

Q: The reaction that represents the formation of solid chromium metal from the oxidation reduction…

A: Iron reacts with chromium(II) acetate to form iron(III) acetate and chromium metal. The equation for…

Q: A car battery is a lead-acid battery. The reaction that occurs when the battery is recharging is a…

A: Given :-  PbSO4(s) + H2O(l) → PbO2(s) + Pb(s) + H2SO4(aq) (unbalanced equation)  To determine :-…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".