Consider the following reaction:      2 Al + 6 HBr → 2 AlBr3 + 3 H2  When 1.61 moles of Al reacts with 4.96 moles of HBr, how many moles of  H2 are formed?  What is the limiting reactant?  For the reactant in excess, how many moles are left over at the end of the reaction?

Q: The drawing below shows a mixture of molecules: key O carbon hydrogen O nitrogen sulfur chlorine…

A: There are 10moles of Carbon and 4 moles of oxygen initially present. a) Of which moles are there the…

Q: What evidence of chemical change might you expect to observe from this reaction?

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur охудen chlorine…

A: We have to predict the most moles species , least moles species as well as limiting reactant.

Q: The drawing below shows a mixture of molecules: carbon nitrogen oxygen key O hydrogen sulfur…

A: It is evident from the drawing that 2 red atoms (oxygen) combine to form a molecule of oxygen while…

Q: The drawing below shows a mixture of molecules: key carbon O hydrogen nitrogen sulfur oxygen…

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Q: a. For the following unbalanced equation, calculate how many moles of the second reactant would be…

A: The balanced chemical reaction of cobalt and fluorine is as follows: 2Cos + 3F2g  →  2CoF3g The…

Q: Nitric acid is prepared from the reaction of 69.0 grams of nitrogen dioxide with 36 grams of water.…

A: Balanced equation- 3NO2 + H2O = 2HNO3 + NO. Coefficient of of NO2 3.

Q: 5. Benzene, C&H6, has a density of 0.787 g/mL. Burning 10.0 mL of benzene would produce how many…

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Q: Of which reactant are there the most initial moles? Enter its chemical formula: of which reactant…

A: From the drawing, we can see that 2 red oxygen atoms combine to form 1 oxygen molecule. There are 10…

Q: The drawing below shows a mixture of molecules: O carbon nitrogen O oxygen key O hydrogen O sulfur…

A: Given that, 4 HCl(g) +O2(g)----------> 2H₂O(g)+2 Cl₂(g) Identify the limiting reagent.

Q: In an experiment, 50.0 g of sodium chloride is reacted with 75.0 g of sulfuric acid, and 52.0 g of…

A: In this question, we have to determine the percent yield for the given reaction with given values.

Q: The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur охудen chlorine…

A: a)     Reactant which have most initial moles = H2

Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

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Q: Consider the following balanced chemical equation: 2 Na(s) + Cl2 (g) →2 NaCl(s) If 4 moles of sodium…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: A student working in the laboratory produces 6.81 grams of calcium oxide, CaO, from 20.7 grams of…

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Q: The drawing below shows a mixture of molecules: carbon nitrogen oxygen key O hydrogen sulfur…

A: Recall the given reaction,                                   2 SO2 g + O2 g → 2 SO3 gWe have to…

Q: The drawing below shows a mixture of molecules: carbon 1 Onitrogen key oxygen Ochlorine Suppose the…

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Q: Aluminium and chlorine gas combine to form aluminium chloride.    What is the balanced equation for…

A: 1. 1.5 mol AlCl32. 2.0 mol AlCl33. 1.5 mol of AlCl34. 0.75 moles of Cl2 remain at the end of the…

Q: Question 13 For the reaction: 2NO + 0, → 2 NO2, one starts with 26.6 grams of NO and 16.1 grams of…

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Q: The drawing below shows a mixture of molecules: carbon nitrogen oxygen key O hydrogen sulfur…

A: Answer: On the basis of color it is clear to predict that two elements present are sulfur (golden…

Q: Consider the following reaction: CO + 2 H2→CH3OH( How many moles of H2are needed to react 0.096…

A: From the given balanced reaction we can say that  1) moles of H2 needed = moles of CO reacting X 2…

Q: 1. Balance the chemical equation given below, then use it to answer the following questions. NH3 (g)…

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Q: Given the equation: Al4C3 + 12 H2O → 4 Al(OH)3 + 3 CH4     How many moles of water are needed to…

A: The balanced reaction taking place is given as, => Al4C3 + 12 H2O → 4 Al(OH)3 + 3 CH4

Q: When 1.547 g of sodium hydrogen carbonate (baking soda) is heated, it decomposes to 0.561 g of…

A: Given -> Weight of NaHCO3 = 1.547 gm Actual yield of Na2CO3 = 0.561 gm  Molar mass of NaHCO3 =…

Q: For the reaction shown, calculate how many moles of each product form when the given amount of each…

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Q: For the following unbalanced reaction, if you start with 2.50 mol of N20(g) how many moles of Olg)…

A: Given value : Moles of N2O  present = 2.5 mole  Balancing the unbalanced equation :…

Q: Hydrocarbons such as propane burn in oxygen gas to produce heat. The balanced equation below shows…

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Q: What mass of CO2 is produced from the combustion of 1 gal of gasoline? The chemical formula of…

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Q: Consider the following chemical equation: NH4NO3 (s) → N2O (g) + H2O (g) What would be the…

A: The given equation is unbalanced,  NH4 NO3 (s) -> N2 O (g)  +  H2O (g) We need to balance the…

Q: For the following reaction, give the balanced equation for the reaction.   Consider the following…

A: According to the Law of Conservation of Mass, In a chemical reaction, the total mass of the reactant…

Q: 2NO(g) + O2(g) → 2NO2(g) You are provided with 4.12 molmol of nitrogen monoxide gas. Using the…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: 1.Given the following balanced chemical equation, how many grams of O2 would be produced from 21.44…

A: The balanced equation is   2 KClO3 ---------> 2 KCl + 3 O2 (g) Mass of KClO3 = 21.44 g Molecular…

Q: Al2Cl6 is made by treating scrap metal with chlorine gas according to the following equation: 2…

A: The given chemical equation as follows --- 2 Al (s)   +   3 Cl2 (g)   ⟶⟶   Al2Cl6 (s)…

Q: Solutions of sodium hypochlorite (NaClO) are sold as laundry bleach. This compound is made by the…

A: Mass of NaOH = 6.23 g Molar mass of NaOH = 40 g/mol Moles of NaOH = mass of NaOH / molar mass of…

Q: For the following reaction, 27.8 grams of sodium chloride are allowed to react with 66.9 grams of…

A: An aqueous solution of sodium chloride reacts with an aqueous solution of silver nitrate to form an…

Q: For the reaction shown, calculate how many moles of NO2 form when each amount of reactant completely…

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Q: Consider the following balanced chemical reaction: HNO3 + 3H2 → NH2OH + 2H2O If 25.0 grams of HNO3…

A: Given reaction :  HNO3 + 3H2 ----> NH2OH + 2 H2O Mass of HNO3 used = 25 g Molar mass of HNO3 =…

Q: The drawing below shows a mixture of molecules: carbon nitrogen oxygen key hydrogen sulfur chlorine…

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Q: Given a balance chemical equation , 2 C2H6 (g)+7 O2 (g) —> 4 CO 2 (g)+6 H2O(g) If reaction mixture…

A: We wil use stoichiometry of the reaction

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".