Water can be separated into its elements according to the following equation by electrolysis. If 20.0 g of water is decomposed by this method, how much oxygen gas is produced? 2H2O(l) 2H2(g) O2(g)

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

A: Chemical reactions can be added, subtracted, or multiplied like an algebraic equation.

Q: which element is the oxidizing agent?

A: Increase in the oxidation number is the oxidation and lowering in the oxidation number is the…

Q: 1. Aluminum atoms corrode in air to form an impervious aluminum oxide coating that prevents further…

A: We have to calculate the mass of aluminium oxide formed.

Q: Consider the following reaction: 2C2H6 (g) + 7O2 (g) → 4CO2 (g) + 6H2O (g) Which substance is…

A: The substance whose oxidation number increases is oxidized while the one whose oxidation number…

Q: Water can be separated into its elements according to the following equation by electrolysis. If…

A: Given that 20 g of H2O is decomposed by electrolysis method.

Q: Balance the following chemical reaction and determine the coefficients of H20 and AIK(ÓH)4,…

A: Balance the following chemical equation  Al + KOH + H2O --------> AlK(OH)4 + H2

Q: Wine open to the air turns sour over time due to oxidation of ethanol (molar mass 46 g/mole) to…

A: Since from the first reaction step we can see that 2 moles of ethanol is producing 2 moles of…

Q: Balance the equation and give the coefficient of the question mark (?). KOH + H3PO4 K3PO4 + H20…

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Q: 3Cl- + 2Cr(OH)33ClO- + 2Cr+ 3H2O In the above redox reaction, use oxidation numbers to identify…

A: In redox reaction oxidation and reduction takes place simultaneously,

Q: Give the product of the given reactants, balance the equation, and identify the type of chemical…

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Q: Use the chemical equation to answer the question. Br2(l) + 2NaI(aq) → I2(s) + 2NaBr(aq) Which…

A: Answer - According to the question - Given  -  chemical equation - Br2(l) + 2NaI(aq) → I2(s) +…

Q: Which substance is oxidized in the balance equation below? 3HS+103+3H' I+35+ 3H20 OS OS2 in HS 1in…

A: Oxidation is the loss of electrons during a reaction by a molecule, atom, or ion. Oxidation occurs…

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

A: Two reactions are given and yield of both reaction are also given. And obtain mass of Cu is also…

Q: Write the balanced chemical equation for the reaction shown. = NO NO, balanced equation: 4NO, + 8NO…

A: A chemical equation is said to be balanced if atoms of different elements are equal in number on…

Q: The Black Horse space plane is a concept space craft that is unique in many respects. Its design for…

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Q: Balance and classify the following chemical reactions. To classify choose one or more from among…

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Q: The thermite reaction is used in welding applications and chemistry demonstrations because it…

A: An increase in the oxidation state is termed as oxidation while the decrease in the oxidation state…

Q: Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen…

A: For the net chemical  reaction we have to eliminate the intermediate.

Q: Write a chemical equation for the combustion of 1 mol of pentane gas, C5H12(g), to form Carbon…

A: In balanced reaction number of each atom on reactant side is equal to number of each atom on product…

Q: Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions…

A: 4Fe(s) + 3O2(g) -------> 2Fe2O3(s).∆Hrxn= -1.65 × 103KJ Weight of Iron(Fe) = 0.100 Kg = 0.100 ×…

Q: Balance the following equations, name reactants and products, name reactions type and prove…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: What is the sum of all the stoichiometric coefficients in the balanced chemical equation for the…

A: given; Reaction of magnesium with gold (III) nitrate to produce solid gold and magnesium nitrate.…

Q: Balance the following reaction in acidic solution. Cr2O72-(aq)+HNO2(aq)→Cr3+(aq)+NO3−(aq) Fill in…

A: A balanced reaction reaction has equal number of atoms on both the reactants and the product side. A…

Q: Give the product of the given reactants, balance the equation, and identify the type of chemical…

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Q: Give the product of the given reactants, balance the equation, and identify the type of chemical…

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Q: Nitric acid is used to make many products, including fertilizers, dyes and explosives. The first…

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Q: The rusting of iron is a chemical reaction of iron with oxygen in the air to form iron(III) oxide.…

A: Balanced reaction of rusting of Fe in oxygen ?

Q: (COG 3) When copper wire burns in air, copper(II) oxide is produced as show in the equation that…

A: In the above reaction we can see that the Cu and O2 molecules are combining to form a CuO product…

Q: Calcium nitrate and sodium hydroxide produce sodium nitrate and calcium hydroxide. Write the…

A: Write the balanced reaction and classify the reaction--

Q: Which element is oxidized and which is reduced in the following reactions  2H2 + O2 > 2H2O  3…

A: Explanation: Oxidized: The increasing oxidation state of complex or ion or formation of carbocation…

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

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Q: 12. Combustion reactions take place between a fuel and oxygen and produce carbon dioxide and water.…

A: A question based on balancing the chemical reaction, which is to be accomplished.

Q: What is the balanced equation for Barium peroxide (BaO2) decomposes into oxygen and barium

A: Applying concept of balancing chemical reaction.

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

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Q: Consider the following reaction: Al 25 3+_ NaNO 3 →_ Na 25 + _ Al(NO 3) 3. The coefficients that…

A: The unbalanced equation is: Al 2S3+ NaNO3 → Na2S + Al(NO3)3 Let us first balance Al both side, Al…

Q: In the reaction, Cu + 2 AgN03 → Cu(NO3) 2 + 2 Ag, the substance that becomes oxidized is OCu Ag O…

A: We have to identify the oxidized substance.

Q: 5- The mass (in g) of Ca in 14600 mg CaCl, is ..... .. ...... 6- The oxidation number of sulfur in…

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Q: Look at the chemical equations below and determine if the reaction should be classified as a…

A: Definitions of Reactions Synthesis Reaction  When two or more reactants combines to a single…

Q: For each reaction scenario below, predict the products of the reaction, and write a complete…

A: Electrolysis is a technique that uses direct electric current  to movve forward a non- spontaneous…

Q: In the reaction, identify which element in what species is oxidized?     In the reaction, identify…

A: Species whose oxidation number increases will be oxidised.and acts as a reducing agent. Species…

Q: When potassium metal is placed in water, a large amount of energy is released as potassium hydroxide…

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Q: how many electrons are transferred when 27 g of iron react?

A: The given balanced reaction is  4Fe(s) + 3O2(g) = 2Fe2O3(s) The oxidation state of Fe in reactant…

Q: The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In…

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Q: Balance the following chemical reaction and determine the number of moles of HI produced when 2…

A: Since, Balanced equation means number of each atom in both side are present in equal number. So,

Q: In the following reaction, when the equation is correctly balanced, what is the correct coefficient…

A: Al( s) + Cl2( g) → AlCl3( s)  ........  1  For balanced the equation (1) , Multiplying 2 with…

Q: Which of the following represents the correct balanced chemical equation for the burning of coal…

A: When coal is burned, it reacts with the oxygen in the air. This chemical reaction converts the…

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

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Q: In an electrochemical decomposition apparatus constructed with a magnesium chloride (MgCl2) cell and…

A: Mg2+ +2e -> Mg  K+ + e -> K  Molar mass of Mg = 24 g/mol

Q: What type of reaction is represented by the following equation: CoCl2(aq) + 2NAOH(aq) Co(OH)2(s) +…

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