After determining the composition of a mixture of KClO3 and KCl, it is found that the calculated amount of KCl is incorrectly high. The most likely cause of the this is that A) KCl also decomposed during the reaction. B) some of the sample powder was spilled after weighing. C) a small amount of KClO3 did not decompose, resulting in a smaller mass loss than should have occurred. D) KClO3 also released Cl2 gas during the reaction.

Q: 3) If 1.2 mol of phosphorus (P) interacts with 1.2 mol of chlorine according to the following…

A: Given:  Moles of P = 1.2  Moles of Cl = 1.2

Q: Complete and balance the following chemical equation for the Complete combustion of Ethanol: (List…

A: The complete and balance equation for the complete combustion reaction of ethanol has to be given.

Q: When 2.2 moles of C₂H4 is combusted, how many moles of CO₂ are produced? C₂H4 (g) + O₂(g) → CO₂ (g)…

A:

Q: 7) Identify the type of a chemical reaction where the more reactive element will replace less…

A: Decomposition Reaction = It is a type of Chemical reaction in which a compound breaks down into two…

Q: Calculate the abundance of combustion C2H2 if combustion is the result of half a mole of CO2 Mall…

A:

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A:

Q: 2KClO₃ → 2KCl + 3O₂ If 25.0 g of KClO₃ decompose, what mass of O₂ will form?

A: The molar mass of KClO3 is 122.4 g mol-1. Number of moles in 25.0 g of KClO3 is given as; Number of…

Q: O Baci O Ca(NO3)2 AgCI O CANO3

A: We have to determine the precipitate

Q: A student mixes 3.85 moles of C2H6 with 15.0 moles of O2 during an experiment. What is the maximum…

A:

Q: 9. Phosphorus reacts with oxygen gas to produce tetraphosphorus decoxide. 4 Po + 5 02(g) P,O 10(9)…

A:

Q: What can be measured using a calorimeter? O atomic emission from nuclear decay O pressure change in…

A: A calorimeter is an instrument used for calorimetry or the process of measuring the heat of chemical…

Q: 20. Sodium nitrite (NaNO₂) is often added to processed meat to enhance color and to protect against…

A: The question is based on the concept of pH of the solution.  it is defined as a negative logarithm…

Q: Write the balanced chemical reaction for the combustion of gaseous propane (C3H8) to form water…

A:

Q: Classify the reactions 3Mg(s) + N2(g) → Mg3 N2(s) Choose... Na2CO3(aq) + Fe(NO3)2(aq) → FeCO3(s)…

A:

Q: Question 15 of 37 Write a balanced chemical equation based on the following description: solid CH O…

A:

Q: 5) For the following reaction: I2 (g) + H2 (g) → 2HI (g) If the amount consumed from (I2) according…

A:

Q: Which of the reactants will produce H2S(g) ? Na2S O NazSO4 Na,SO2 O Na2SO3

A:

Q: On what law is stoichometry based, and how do thecalculations support this law?

A: Stoichiometry is the branch of chemistry that deals with the mass of various reactants and various…

Q: A chemical reaction occurs when a chemical converts into another substance. Synthesis is one of the…

A: Given:-  Mass of Na = 40  Mass of cl= 50g For 1g of chloride 2 g of Na is used 10 g of Na used in 5…

Q: 9. What is the starting material in the following reaction? A. I B. II || C. III D. IV LDA CH₂l Br…

A:

Q: what mass of h2o in grams will be generated by the complete combustion of 10.5 g of octane in excess…

A: The combustion of octane will give water and CO2.

Q: Fernando is doing his pre-lab homework for Chemistry. He is asked to predict how many grams of CO2…

A: 2.09 mol of HCl is reacted.  46.0 g of CO2 will form. But experimentally 44.98 g of CO2 are…

Q: A mixture of C2H2 and CH4 has a total mass of 251.8 g. When this mixture reacts completely with…

A: Given:Total mass of mixture of C2H2 and CH4 = 251.8 g.Total mass of CO2 and H2O = 1138.0 g.Molar…

Q: What are the primary factors that determine the stability of a chemical compound, and how do they…

A: The stability of chemical compounds and their reactivity are intricately linked to several…

Q: Provide balanced equations for the following: ___C7H14 + ___O2 → ___CO2 + ___H2O          ___KO2 +…

A: To balance the reaction look for balancing each atom on both sides of the reaction. If we get the…

Q: Determine which classes of reactions would fit into each of the following categories for the…

A: We are to categorize each reaction with its description given in the table, based on number of…

Q: Sodium hydroxide reacts with carbon dioxide as follows: 2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l)   How…

A: Given, Chemical Reaction:  2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l) Moles of NaOH = 2.30 moles  NaOH is…

Q: Q1) The name of S6Cl₂ is a) hexasulfur bichloride d) heptasulfur dichloride **** ad inds b)…

A: The first question is asking for the correct name of the compound S6Cl₂. The prefix 'hexa-' is used…

Q: 7. Which of the following factors would not increase the calculated percent yield of a reaction? a.…

A: A limiting reagent is a species which is consumed completely during the reaction. It determines the…

Q: Balance the equation below, which uses imaginary elements (they still follow the usual convention –…

A:

Q: Q1) The name of S6Cl₂ is a) hexasulfur bichloride d) heptasulfur dichloride **** ad inds b)…

A: The objective of this question is to determine the correct name of the compound S6Cl₂.

Q: For the following reactions, determine the value of x (in mol). 4 C + S8 → 4 CS2 2.1 mol Ss yields x…

A:

Q: Potassium chlorate (KClO3) decomposes to KCl and O2. Determine the mass of O2 obtained from the…

A: Given, Mass of KClO3 = 12 g  Molar mass of KClO3 = 122.55 gmol-1 Therefore, no. Of moles = given…

Q: A sample of propane gas, C3H8, was combusted to produce energy according to the equation: C3H8…

A: Given :  Molecules of CO2 produced = 1.35 x 1024  Density of water = 1 g/cm3  Also, molar mass of…

Q: Select the best possible products for the given reaction. Don't worry about balancing. SO₂ + H₂O-

A: Balanced the reaction-- SO2+ H2O ---> ?

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A:

Q: Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs,…

A: Given reaction is, CsCl(aq) + K3PO4 (aq) -----> We need to complete and balance the above…

Q: In one experiment you reacted 45.7 g of Alumin um with 182.8 g of Iron (III) oxide to produce…

A: Reaction involved is:

Q: Identify the relation between the two molecules in each of the following four sets of molecules. (A)…

A: To find the relation between the given molecules

Q: Which statement about the following two reactions is correct? Reaction I: A → 2C +B Ea = 54 kJ/mol…

A:

Q: Calculate the theoretical yield in moles NH, from the complete reaction of 59.8 grams N, in the…

A: Given mass of N2=59.8 gram Molar mass of N2=28 g/mol   Moles of nh3 formed=??

Q: Select the correct diagram for the reaction given 4NO(g) + 6H₂O(g) -- Ep1 A P --> 4 NH₂(g) +50₂(g) |…

A: Answer:When the average energy product species is less than average energy of reactant species than…

Q: The reaction shown below is correct. True False N H3O*, heat NH3

A: Alkyl cynides react with water in the presence of acid to form carboxylic acids and ammonia.

Q: Which of the reactants will produce H2S(g) ? Na2S NazSO4 O Na,SO2 ONazSO3

A: The product to be produced is given as H2S. And the reactants given are Na2S, Na2SO4, Na2SO2 and…

Q: Fe3Br8 – an important source of potassium bromide is produced through the following two-stage…

A: The two-stage reaction for the formation of Fe3Br8 is: Stage 1: 3 Fe + 3 Br2 → 3 FeBr2  Stage 2: 3…

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".