What is the theoretical yield of sodium carbonate, expressed in grams, if 128 g of NaCl were used in the first reaction?   If 84.4 g of Na2CO3 was obtained, what was the percentage yield?

Q: When metal zinc reacts with hydrochloric acid, what are the final products?

A: Answer:- This question involves the reaction of zinc metal with the hydrochloric acid. So, metals on…

Q: tatement is true. Remember that any spontaneously operating cell has a positive cell value. Aluminum…

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Q: Predict the products when calcium reacts with chlorine: Ca(s) + Cl₂(g) Be sure your final equation…

A: Reaction of Ca with Cl2 to form product is synthesis reaction .

Q: 15. Balance the following chemical equations, and identify the reaction type of each Balanced…

A: A chemical reaction is said to be balanced reaction when number of atoms of each element in the…

Q: Cu2+ mixed with OH- ions in water forms the blue precipitate Cu(OH)2(s). Cu2+ mixed with a small…

A: The objective of the question is to understand the chemical reactions that lead to the formation of…

Q: During the manufacture of sulfuric acid, sulfur dioxide is converted to sulfur trioxide. 2S02 + 02 →…

A: C. Oxidation, is the correct option.

Q: Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2…

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Q: Which substance is the oxidizing agent and which is the reducing agent? 3NO2(g) + H₂O → NO(g) + 2H+…

A: Oxidation reduction reaction (Redox reaction) It can be defined as the chemical reaction in which…

Q: Determina el estado de oxidación de cada uno de los elementos de las siguientes substancias ¿En cuál…

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Q: Oxygen gas is produced on partial decomposition of which of the following compounds on heating? a…

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Q: the concentration of lead (ii) nitrate goes down when it is mixed with potassiu

A: Why the concentration of lead (ii) nitrate goes down when it is mixed with potassium iodide

Q: Exactly 1.75 moles of N2O4 are placed in an empty 1.0-L container. After a period of time,…

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Q: Write a full balanced equation for the chemical reaction that occurs when an aqueous solution of…

A: Balanced chemical equation Chemical equation in which number of elements present on the reactant…

Q: The following chemical reaction takes place in aqueous solution: 2FeCl3 (aq) + 3Na2S (aq) → Fe2S3…

A: Molecular equation:                              2FeCl3(aq) + 3Na2S(aq) →  Fe2S3(s) + 6NaCl(aq)

Q: For each reaction, predict the products and write a balanced chemical equation. Fluorine gas was…

A: Solution- (a).Fluorine gas was passed over pure barium metal- F2 + Ba           →        BaF2   (b).…

Q: What will be the coefficient of carbon dioxide in the balanced equation? C2H6 + O2 → H2O + CO2

A: Ethane ( C2H6 ) reacts with oxygen ( O2 ) to form water ( H2O ) and carbon dioxide ( CO2 ) gas. In…

Q: The first step in the synthesis of alum is to react aluminum with potassium hydroxide.  Why does…

A: The first step in the synthesis of alum is to react Aluminum with Potassium Hydroxide. This step…

Q: Write the balanced net ionic equation for the reaction of hydrogen sulfide (H2S) with bromate ions,…

A: To solve the problem of writing the balanced net ionic equation for the reaction of hydrogen sulfide…

Q: 3Br₂ + 2PH3+ 6OH¯―2P + 6Br²+ 6H₂O In the above redox reaction, use oxidation numbers to identify the…

A: A reaction in which oxidation & reduction occurs simultaneously are called Redox…

Q: What type of reaction is this? 2K(s) + Cl₂(g) → 2KCl(s)

A: A reaction in which two or more substances chemically combine together and results in the formation…

Q: Describe the process used to balance an equation, use this equation as an example. HCl+KOH→H2O+KCl

A: In a reaction, reactant and product side both are present and there are many types of reaction acid…

Q: A novel process for obtaining magnesium from sea water involves several reactions. Write a balanced…

A: (a) The first step involves in the extraction of magnesium from sea water is the decomposition of…

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: The two reaction is as follows: First reaction: CaC2(s) + 2H2O(g) →C2H2(g) + Ca(OH)2(s) Second…

Q: Determine the Oxidation States of each element in the following reactions:…

A: The given first reaction is, Fes+O2g→Fe2O3g......(1) The second ion is, Fe2+aq......(1) The third…

Q: Balance the following chemical equation. NaHCO3 + H₂C6H5O7→Na3 C6H5O7 + H₂O + CO₂ Assume the…

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Q: Write the balanced NET ionic equation for the reaction when aqueous KBr and aqueous A9C2H3O2 are…

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Q: In the combustion of ethanol, 20.50 g of carbon dioxide gas was produced, What is the volume in mL…

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Q: Reactions in an acidic solution Balance the following reactions in an acidic solution. Identify the…

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Q: Decide whether each chemical reaction in the table below is an oxidation-reduction ("redox")…

A: We have to predict nature of reaction and oxidising agent and reducing agent.

Q: Write the net equation for precipitation of AgI when aqueous solutions of AgNO3 and Nal are mixed.…

A: AgNO3 react with NaI to give AgI.

Q: What is the classification of the following reaction:   MgO + CO2 --> MgCO3   Combination…

A: In a Rxn , When two or more substances combine to form a new substance then this type of reaction is…

Q: Reaction 5: In the final crystallization step, the aluminum sulfate from the previous step reacts…

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Q: a student carries out this chemical reaction in a beaker  Zn+CuCl2 -> Cu+ZnCl2 after the reaction…

A: A student carries out this chemical reaction in a beaker  Zn+CuCl2 -> Cu+ZnCl2 After the reaction…

Q: Zn(s) + HNO3(aq) →→→ Zn(NO3)2 (aq) + H₂(g) - Express your answer as a chemical equation. Identify…

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Q: Balance and classify the following chemical reaction. Choose from one or more: combustion,…

A: Combustion reactions: are defined as the reactions in which substance reacts with oxygen and…

Q: When butanoic acid (C3H7COOH) reacts with the strong base potassium hydroxide (KOH), potassium…

A: Answer:When salt of weak acid and strong base is added in water then it gets hydrolyzed in it to…

Q: Some chemical reactants are listed in the table below. Complete the table by filling in the…

A: The more electronegative element in a substance is a negative oxidation state. The more…

Q: Ammonia reacts with hydrochloric acid to produce ammonium chloride. Identify the balanced reaction…

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Q: Name the major organic compound formed by the following reaction: OCH 3 OCH 3 acid (hydrolysis)

A: A ketal is a functional group in organic chemistry that consists of a carbon atom bonded to two -OR…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.