How do metal oxides compare in

Copper II oxide formula

Students heat copper(II) oxide in a glass tube while passing methane over it. The copper(II) oxide is reduced to copper. If the reactants and products are weighed carefully the formula of the copper oxide can be deduced. This could also be used simply as an example of reduction.

Lesson organisation

This experiment is likely to take up to an hour, perhaps more to analyse the results. Students who have not carried out this type of reaction before may find it helpful to have the techniques demonstrated first. It is not really suitable for a class practical for students under the age of 14, but could be a useful demonstration.

Each pair or group of students will need access to 2 gas taps.

The students will need access to matches or lighters to light their Bunsen burners. Alternatively, light a few around the room and students can light their own using a splint.

Apparatus and chemicals

Per pair or group of students:

  • Eye protection
  • Reaction tube, (hard glass test-tube with small hole near closed end: see note 2)
  • 1-hole bung with glass tube to fit the reduction tube
  • Rubber tubing
  • Retort stand
  • Boss
  • Clamp
  • Bunsen burner
  • Heat resistant mat
  • Spatula
  • Access to:
  • Balance – must be accurate to at least 0.01g

Technical notes

  1. For best results use wire form copper (II) oxide. Alternatively, use analytical grade copper(II) oxide which has been dried by heating in an open dish at 300–400 °C for 10 min and then stored in a dessicator. It is also worth referring to the CLEAPSS® laboratory Handbook Section 13.2.3 for further information about this experiment.

Health & Safety

Wear eye protection.


B. Weigh the tube again, with the copper oxide in it (mass 2).

C. Assemble the apparatus as shown in the diagram, but do not place the Bunsen burner underneath yet. Clamp the test tube as near to the bung as possible.

Read electro-mechanical engineering blog
You might also like
Forks Over Knives Nitric Oxide
Forks Over Knives Nitric Oxide
Chemical properties of Nitric oxide
Chemical properties of Nitric oxide
Cardio~Juvenate+ Cardio Fitness Formula: Nitric Oxide
Cardio~Juvenate+ Cardio Fitness Formula: Nitric Oxide ...
#1 Nitric Oxide Booster--Ultimate Nitric Oxide Supplements + L Arginine Are The Best Pre Workout Pills To Build Muscle Fast, Increase Strength, Reduce Recovery Time and Maximize Endurance In And Out Of The Gym! Experience "The Power of The Pump" for Yourself-- Fast Acting Formula--100% "SEE RESULTS" Satisfaction Guaranteed or Your Money Back-- Buy TWO, Get FREE Shipping
Health and Beauty (UltaLife)
  • Ultimate Nitric Oxide Booster + L. Arginine works like Rocket Fuel for your Workout! Explodes Muscle Growth, Increases Strength, Reduces Recovery Time and Maximizes...
  • Nitric Oxide is a key molecule that expands your blood vessels--which leads to increased oxygen and increased blood flow to critical areas of your body delivering...
  • L.Arginine Boosts Nitric Oxide Production For Fast Muscle Building, A Healthy Heart, Good Blood Pressure and Fast Muscle Growth-- significant gains of lean muscle...
  • PUTS YOUR LIBIDO ON OVER-DRIVE. NO2 Body Boost increases your sex drive, erectile strength, ejaculatory strength and may increase seminal fluid volume. This is one...
  • EXPERIENCE THE POWER OF THE PUMP. Nitric Oxide Boost works on your muscles and your mood--You ll notice the feeling of Fuller, Pumped Muscles and Overall Feeling...
Nitroxyl-Nitric Oxide Supplement - Increase Endurance and Performance - Best Workout and Recovery - Improve Memory and Concentration - Comprehensive NO2 Booster with L-Citrulline, Beet Root, Hawthorn, Vinpocetine and more-Promote Heart Health & Low Blood Pressure
Health and Beauty (Pale Blue Dot, Inc)
  • Users report a boost in energy, increased focus, and an overall sense of well-being.
  • Look better and feel better. Increase your stamina and intimate performance.
  • Recover rapidly after heavy exercise without caffeine, stimulants or other undesirable additives.
  • Enhanced memory and alertness will drive your productivity.
  • When you order today you ll be receiving a one of a kind product with world class service. When you do, consider purchasing six bottles (with our buy 6 save $50...
Absonutrix Nitric Oxide Xtreme NO2 formula - Power Stamina
Absonutrix Nitric Oxide Xtreme NO2 formula - Power Stamina ...
oxido nitrico
oxido nitrico
Nitric Oxide
Nitric Oxide
Elite NO2 Nitric Oxide AND L-Arginine Supplement - 120 Capsules to Increase Performance, Gain Lean, Hard Muscle & Boost Endurance - Top Pre-Workout Booster GUARANTEES Best Results Market-Wide!
Health and Beauty (L&L Supplements)
  • BRAND NEW FORMULA! - L&L Supplement s brand new NO2 formula will give you such amazing results that it will make you wonder how you ever worked out without it!...
  • L-ARGININE IMPROVES RECOVERY TIME AND REDUCES FATIGUE - This natural amino acid found in our NO2 will greatly reduce your fatigue while speeding up recovery time...
  • DESTROY BODY FAT - The L-Arginine found in our Nitric Oxide increases glucose (sugar) uptake during excersize. This causes more of your available glucose to be used...
  • IRONCLAD MONEY-BACK GUARANTEE - We love our product and we know you will too! But if for some reason you are not satisfied, return your bottle (even if it is empty)...
L-Arginine - No2 Nitric Oxide Booster, Build Muscle Increase Strength and Boost Sex Drive - Best and Purest L-Arginine + Top Rated - Most Effective Dose for Men and Women - MADE IN USA by Pure Label Nutrition
Health and Beauty (Pure Label Nutrition)
  • IMPROVE, ENHANCE, BOOST SPORTS PERFORMANCE - Pure Label Nutrition s Custom Formulated L-Arginine with help provide you with the Energy, Stamina and Endurance to...
  • BOOST SEXUAL PERFORMANCE AND GO THE DISTANCE - Finally an All Natural way to Increase Sex Drive for both Men and Women.
  • INCREASE and MAXIMIZE BLOOD FLOW - There are huge benefits to increased blood flow and circulation. More blood flow means increased nutrient saturation in the muscle...
  • 2 MG of L-ARGININE in the PUREST FORM POSSIBLE - When taking L-Arginine, the Optimal Dose is VERY IMPORTANT for Optimal Results. Most Companies Sell Low Dose L-Arginine...
  • 100% MONEY BACK GUARANTEED - You have nothing to lose, backed by our 100% Money Back Guarantee! If you are not 100% satisfied with your results, return for a full...
BEST NO2 Nitric Oxide Booster AND L-Arginine Supplement 90 Capsules, Build Muscle Fast & Boost Performance, Build Muscle & Increase Workout Endurance, Best Nitric Oxide Boost on the MARKET, MORE L-Arginine For MAXIMUM Muscle ! Expedited RECOVERY ! Extreme 2,400mg per Daily serving. Hyper Lift by Pure Body Nutra.
Health and Beauty (Pure Body Nutra)
  • #1 TOP RATED FORMULA: Pure Body Nutra Hyper Lift No2 Is The ONLY Popular Nitric Oxide Booster That Contains 2 different types of L-Arginine in per CAPSULE ! One...
  • L-ARGININE IMPROVES RECOVERY TIME AND REDUCES FATIGUE - This natural amino acid found in our NO2 will greatly reduce your fatigue while speeding up recovery time...
  • ENDURANCE BOOSTER - Go Longer and Harder with Shorter Recovery Times. Get the NO2 Boost You Need and Reduce Fatigue without the Jitters, Stimulant Headaches or Crash...
  • YOU CAN FEEL THE RUSH - Notice increased blood flow, peaked alertness, energized responsiveness, fantastic workout focus, and a renewed sense of calm. Lose fat and...
  • BOOST ALPHA MALE PERFORMANCE: Hyper Lift NO2 Increases Blood Flow To The Muscles, It Gives You A Blood Flow Post To Other Areas Of The Body As Well. The Ladies...
Related Posts