Classify each chemical reaction: type of reaction (check all that apply) reaction combination precipitation CH,OCH, (1) + 30,(s) - 2c0,(g) + 3H,0(g) O single replacement double replacement combustion acid-base decomposition combination precipitation H,CO,(ag) → H,0(1) + co,(g) O single replacement double replacement acid-base O combustion decomposition O combination precipitation Cuso,(ag) + ZnCro,(aq) O single replacement O double replacement ZnSo, (ag) + CuCro,(s) combustion acid-base Odecomposition O combination Oprecipitation O single replacement Odouble replacement acid-base 2K (s) + Br, () 2KBr(s) combustion decomposition

Ammonium Chloride+ sodium hydroxide -->                                                                                                                      Molecular equation, Total ionic equation, net ionic equation, and type of reaction.

A 0.7011-g mixture of sodium chloride and sodium nitrate is completely dissolved in water. When silver nitrate is added to the solution, 0.9805 g of solid precipitate. What is the percent by mass of chloride in the initial mixture? 65.41 % 71.50 % 34.59 % 13.99 % 28.50 %

How can we complete and balance

Classify each chemical reaction: type of reaction (check all that apply) reaction combination precipitation single replacement O combustion HCI(aq) + NaOH (aq) NaCl(aq) + н,о() double replacement acid-base decomposition combination precipitation single replacement O combustion 2Na (s) + F, (g) - 2NaF (s) double replacement acid-base decomposition combination precipitation single replacement combustion 2CH,CH, (g) + 70, (g) 4CO, (g) + 6H,0(g) double replacement acid-base decomposition combination precipitation single replacement combustion Na, S (aq) + FeCl, (aq) → 2NaCI(aq) + FeS (s) double replacement acid-base decomposition ? O O O

III O Chemical Reactions Solving for a reactant in solution 3/5 B One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(II) carbonate, in concentrated sulfuric acid. The sulfuric acid reacts with the copper(II) carbonate to produce a blue solution of copper(II) sulfate. Scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: Fe(s) + CuSO4(aq) → Cu(s) + FeSO4(aq) Suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. He adds powdered iron to a 200. mL copper(II) sulfate sample from the plant until no more copper will precipitate. He then washes, dries, and weighs the precipitate, and finds that it has a mass of 63. mg. Calculate the original concentration of copper(II) sulfate in the sample. Round your answer to 2 significant digits.