Give reason(s) for the product(s) 1. barium chloride + sodium sulfate → 2. calcium + hydrochloric acid → 3. iron(II) sulfide + hydrochloric acid → hydrogen sulfide (g) + 4. zinc chloride + ammonium sulfide → 5. ammonia + oxygen → nitric acid + water . Using the balanced equation below to answer the following questions. Chemistry . One element replaces another in a compound . Post oxidation numbers for compounds. Add a coefficient of 2 in front of "KCl". Question By default show hide Solutions. CISCE ICSE Class 7. When the following equation is balanced, KClO3 ----> KCl + O2 the coefficient of KClO3 is _____? KClO3 ---> KCl + 3 O2. 2. Next, we need to … The balanced chemical equation is given as: KClO3 --> KCl + 3/2 O2. 1. The complete combustion of which of the following substances produces ONLY carbon dioxide and water? H2 + Br2 → 2 HBr 2. What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a 6.00 M KCl solution to a volume of 0.500 L? You MUST write each ion symbol and charge above the ion name in a compound. Oxygen can be produced in the laboratory by the reaction 2 KClO3(s) → 2 KCl(s) + 3 O2(g) . Report 1 Expert Answer Best Newest Oldest. Then using these values, determine the experimental mass percent of oxygen in potassium chlorate (see Theory Section for equation required). 1. Use the residue mass after the final heating for these calculations. R-Br H2SO4 R RuO4 or SeO2 Antimarkovnikov: Oxidations 2. When the equation KClO3(s) -> KCl(s) + O2(g) is balanced, the coefficient of KClO3 is ____. Which of the following is true regarding single-displacement reactions? b) Aluminum sulphate solution and calcium hydroxide solution produce a precipitate of aluminum hydroxide and solid calcium sulphate. 2 Cu(NO3)2 → 2 CuO + 4 NO2 + O2 5. If the word equation is complete, write and balance the chemical equation. In which type of reaction do two or more compounds react to form one product? We are asked to balance the following word equation: potassium chlorate --> potassium chloride + oxygen The first step would be to know the chemical … The thermal decomposition of potassium chlorate 2KClO 3 2KCl + 3O 2 [ Check the balance ] The thermal decomposition of potassium chlorate to produce potassium chloride and oxygen. Concept Notes & Videos & Videos 104. Balance the chemical reactions using coeficients. Syllabus. now you have 6 O on both sides .. now balance the K and Cl by multiplying KCl on the right by 2 .. 2 KClO3 ---> 2 KCl + 3 O2. 2 KClO 3 --> 3 O 2 + 2 KCl  How many grams of O 2 will be formed from the decomposition of 8.54 g of KClO 3? 3 X – Science. Add comment More. "2KClO"_3("s")" + heat"rarr"2KCl(s)" + "3O"_2("g")" The equation is now balanced with 2 "K" atoms, 2 "Cl" atoms, and 6 "O" atoms on both sides. We can check if the equation is balanced or not, by counting the atoms of each element on both sides of equation. 2 Al + 3 HgCl2 → 2 AlCl3 + 3 Hg 8. Tutor. It is this reaction that will be studied in this experiment. KClO3 -> KCl + O2. 10 0? 1. KMnO4 or O3 1. Balancing Strategies: In this combination (also called synthesis) reaction, the NO and O2 are combining to form NO2. 3. Type of Chemical Reaction: For this reaction we have a combination reaction. Write word equations for the following skeletal equations: KClO3 → KCl + O2. (NH4)2Cr2O7 → Cr2O3 + N2 + 4 H2O 6. 37 terms. 2KClO3 2KCl+3O2 If this reaction produced 40.6 g KCl, how many grams of O2 were produced? B. YOU MIGHT ALSO LIKE... Chemical Reactions Test. balanced reaction ____2 H2 + O2 ( 2 H2O _____ word equation: Magnesium reacts with hydrochloric acid solution (HCl in water) to form magnesium chloride and hydrogen. In all instances a skeleton chemical equation was given to us containing correct symbols and formulas for the reactants and products. Post diatomics (for single units only) 4. Follow • 1. B2H6 or BH3 Hydroboration (Hydration) … Write the chemical reaction in word form. Potassium chlorate yields potassium chloride + oxygen gasoline KClO3 --> KCl + O2 BALANCED: 2KCLO3 --> 2KCL + 3O2 2 C2H6 + 7 O2 → 4 CO2 + 6 H2O 7. Read each sentence carefully: pay attention to what reacts and what is formed. Although we usually leave oxygen to be one of the last elements we balance, in this case it is the only one not balanced at present, so we start there - multiply the O2 by one and a half to balance the Oxygen . 5. Sodium phosphate + calcium chloride --> calcium phosphate + sodium chloride Na3PO4 + CaCl2 --> Ca3(PO4)2 + NaCl Balanced: 2Na3PO4 + 3CaCl2 --> Ca3(PO4)2 + 6NaCl 2. Be sure to count all of the Oxygen atoms on the reactant side of the equation. Word equation: Nitrogon monoxide + Oxygen gas → Nitrogen dioxide. If the word equation is incomplete, complete it and write the balanced chemical equation. 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