In a hydrogen fuel cell, hydrogen gas and oxygen gas are combined to form water. Write the balanced chemical equation describing this reaction using the lowest whole-number coefficients. chemical equation: 2H2(g) + O₂(g) → 2H₂O(1) Identify the oxidizing agent. hydrogen water Incorrect oxygen presented by Macmillan Learning

In a hydrogen fuel cell, hydrogen gas and oxygen gas are combined to form water. Write the balanced chemical equation describing this reaction using the lowest whole-number coefficients. chemical equation: 2H2(g) + O₂(g) → 2H₂O(1) Identify the oxidizing agent. hydrogen water Incorrect oxygen presented by Macmillan Learning

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Assuming an efficiency of 28.00%,28.00%, calculate the actual yield of magnesium nitrate formed from 133.6 g133.6 g of magnesium and excess copper(II) nitrate. Mg+Cu(NO3)2⟶Mg(NO3)2+Cu Actual yield in grams
In a redox reaction, electrons are transferred from the substance being oxidized to the reducing agent. O from the oxidizing agent to the reducing agent. from the substance being reduced to the oxidizing agent. from the substance being oxidized to the substance being reduced. O from the substance being reduced to the substance being oxidized DOO00
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Predicting whether simple electrochemical reactions happen Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols. situation A strip of solid silver chemical reaction? metal is put into a beaker of 0.079M Fe(NO3)2 solution. yes no A strip of solid iron metal is put into a beaker of 0.084M AgNO3 solution. chemical equation ☐ yes ☐ no ☑
QUESTION 5 For the reaction below, determine the stoichiometric coefficient on the hydrogen ion in the balanced redox reaction in acid solution. In compounds, the oxidation state of O is 2-. Assume X is a diatomic element and that M is a metal that can have multiple oxidation states. This question is not multiple choice, you will input the integer answer to this question. MO 3 (aq) + X 3+ (aq) → X 4+(aq) + M 3+ (aq)
Write your answer in the blank provided. Examine the following balanced half-reaction: 2H2O + CrO2 → CrO4 2- + 3e- + 4H+ 1. Is this an oxidation or a reduction? 2. What element is oxidized or reduced? Balance the following half-equation in acid. ClO3 - → Cl2 The above reaction occurs along with the reaction given above before Part 1 of this problem. Write a balanced equation for the overall reaction that occurs. What is the coefficient of water in the balanced overall equation? Which reactant is the oxidizing agent?
Using the table of half-reactions, write a balanced equation for a redox reaction where chlorine oxidies iron. Then write a balanced equation for a redox reaction where calcium reduces water to produce hydrogen gas.
For each chemical reaction listed in the table below, decide whether the highlighted atom is being oxidized or reduced. highlighted atom is being... reaction neither oxidized nor reduced oxidized reduced CH(9)+H,O(g) → CO(g)+3 H,(g) CO(g)+H,O(9) → CO,(9)+H,(9) N(9)+3 H,(9) → 2 NH3(9) 4 HF(g)+ SiO,(s) → SiF,(9)+2 H,O(9)
3 N2O4 (g) + 2 Al (s) → 6 NO2–(aq) + 2 Al3+(aq)In the reaction above what substance is being reduced? Al (s) Al3+(aq) N2O4 (g) NO2–(aq)