Chemistry

Which reaction has been chosen as the 'standard' against which every other reaction is measured?

A. F2 + 2e ---> 2F–
B. O2 + 4H+ + 4e ---->2H2O
C. 2H+ + 2e---> H2
D. Li+ + e ---> Li
E. H2 + 2e --->2H

i got C is that right?

  1. 👍 0
  2. 👎 0
  3. 👁 175
  1. I guess C is correct, since there is no "none of these" as a choice. Technically, the H^+ is at 1 M activity and H2 gas is at 101.325 kPa (1 atmosphere) and convention is to show that when writing the cell notation. Technically, again, the problem asks which REACTION has been chosen and that doesn't require stating molarity and pressure. So C is correct.

    1. 👍 0
    2. 👎 0
  2. its wrong!

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    what type of reaction is this 2h2o2 (l) -> 2h2o(l)+ o2 (g) a.single replacement reaction. b.decomposition reaction. c.acid-base neutralization reaction. d.no reaction.

    asked by bri;) on May 2, 2017
  2. Chemistry

    Calculate the standard entropy, ΔS°rxn, of the following reaction at 25.0 °C using the data in this table. The standard enthalpy of the reaction, ΔH°rxn, is –44.2 kJ·mol–1. C2H4(G)+H20 ---> C5H5OH ΔS°rxn= ______

    asked by Patrick Panasko on November 30, 2014
  3. Chemistry

    For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction 2NO(g) + O2(g) --> 2NO2(g) the standard change in Gibbs free energy is ΔG° = -69.0 kJ/mol. What is ΔG for

    asked by Janavi on March 23, 2014
  4. (11) Chemistry - Science (Dr. Bob222)

    In the following hypothetical reaction A + B → C + D, the equilibrium constant, Keq is less than 1.0 at 25°C and decreases by 35% on changing the temperature to 45°C. What must be true according to this information? A. The

    asked by Ana on May 7, 2014
  1. Science

    Hydrogen peroxide can be prepared in several ways. One method is the reaction between hydrogen and oxygen, another method is the reaction between water and oxygen. Calculate the ΔG°rxn of each reaction below? 1) H2(g) + O2(g)

    asked by Dan on February 5, 2016
  2. Chemistry

    Calculate the standard enthalpy of reaction for the reaction 2Na + 2H2O——> 2NaOH+ H2. Standard enthalpies of formation are -285.8 kJ/mol for H2O and -470.11 kJ/mol for NaOH.

    asked by Opal on November 14, 2019
  3. Chemistry

    Which of the following is true about a thermonuclear reaction: A- The rxn will always have 3 intermediate steps B- The reaction will have low activation energy C- The reaction will always be 3rd order D- The reaction is always

    asked by Ben on July 24, 2020
  4. chemistry

    2.9 The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2(s) → Cr(s) + 2 C6H6(g) that . Find the corresponding reaction enthalpy and

    asked by girlgirl on June 18, 2011
  1. chemistry

    Which of the following can we predict from an equilibrium constant for a reaction? 1 The extent of a reaction 2 Whether the reaction is fast or slow 3 Whether a reaction is exothermic or endothermic a. 1 only b. 2 only c. 3 only

    asked by Aungsan on May 14, 2010
  2. Enthalypy Reaction

    What is the standard enthalpy of reaction for the following chemical reaction? CO2(g) + 2KOH(s) --> H2O(g) + K2CO3 (s) Express your answers numerically in kJ.

    asked by Sarah on September 23, 2008
  3. science

    When Q < K, what can you conclude about the reaction? A. The reaction is not yet at equilibrium, and the reaction will proceed in the forward direction. B. The reaction is not yet at equilibrium, but the direction of the reaction

    asked by logan on September 14, 2016
  4. chemistry

    Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according to the following equation: CH4(g)+H2O(g) = CO(g) + 3H2(g) In a particular reaction, 26.5 L of methane gas (measured at a pressure

    asked by Lili on October 13, 2008

You can view more similar questions or ask a new question.