Tính chất hóa học của O2 là gì?

In Stock

Size Guide

$34.99 $29.99

Shipping and Returns Policy

2 H2 (g) + O2(g) → 2 H2O (g). 42NH3. → 242 +0XT. AH = -180.5 kJ. AH-91.8 kJ. AH ... Find AH° for the reaction 2H2(g) +2C(s) + O2(g) → C2H5OH(1), using ... ... 2H2 + O2 → 2H2O. 2) Time-histories for concentrations of main species H2, O2, H, H2O of hydrogen combustion, in explosion and equilibrium regions, obtained ... 2H2(g) + O2(g) <=> 2H2O(g). Very little reactant relative to product. Requires 200,000L of water vapor to locate 2 H2 and 1 O2 molecules. N2(g) + O2(g) ... Dec 5, 2022 ... Keith Ramsey explains how to use manganese dioxide as a catalyst to increase the rate of decomposition for hydrogen peroxide. 2H2O2(aq) ... Jun 11, 2020 ... What is the full form for this equation 2H2(g) + O2(g) = 2H2O(l) Mar 31, 2016 ... Summarizing from the excellent comments: Isn't the order of the reaction supposed to be the sum of powers of the concentration of the ... Dec 31, 2007 ... “This reaction (2H2 + O2 = 2H2O + Energy) has been known for two centuries, but until now no one has made it work in a homogeneous solution,” ... ... (2H2O2→2H2O+O2) of the WOC by displacing hydrogen peroxide. Using a mass spectrometer and gas permeable membrane to detect the (32)O2 product, the yield and ... Since there is an equal number of each element in the reactants and products of (2H2) + O2 = (2H2O), the equation is balanced. Cathode : O2 +4e− +2H2O → 4OH. −. (5.22). Anode : 2H2 +4OH− → 4H2O+4e. −. (5.23). Overall : O2 +2H2 → 2H2O. (5.24). The working temperature normally ranges ...
  • Next Day Delivery by USPS Find out more

    Order by 9pm (excludes Public holidays)

    $11.99

  • Express Delivery - 48 Hours Find out more

    Order by 9pm (excludes Public holidays)

    $9.99

  • Standard Delivery $6.99 Find out more

    Delivered within 3 - 7 days (excludes Public holidays).

  • Store Delivery $6.99 Find out more

    Delivered to your chosen store within 3-7 days

    Spend over $400 (excluding delivery charge) to get a $20 voucher to spend in-store
  • International Delivery Find out more

    International Delivery is available for this product. The cost and delivery time depend on the country.

You can now return your online order in a few easy steps. Select your preferred tracked returns service. We have print at home, paperless and collection options available.

You have 28 days to return your order from the date it’s delivered. Exclusions apply.

View our full Returns and Exchanges information.

Our extended Christmas returns policy runs from 28th October until 5th January 2025, all items purchased online during this time can be returned for a full refund.

No reviews yet. Only logged in customers who have purchased this product may leave a review.