Specification AgeRangeDescription : adult Brand : Dntum BulletPoint1 : Weight: 200g BulletPoint2 : Material: Environmentally friendly materials, school, laboratory, training institution BulletPoint3 : Product specifications: 8.5 × 8.5 × 12cm BulletPoint4 : Electrolytic cell x1; carbon rod with rubber stopper × 2; observation tube × 2; crocodile clip wire × 2 This instrument is used in the middle school chemistry class to demonstrate water electrolysis and hydrogen and oxygen. BulletPoint5 : Under the action of 12V.1A direct current, the electrolyzed water in 3-5 minutes produced 20 ml: 10 ml of hydrogen and oxygen, verifying that one water molecule consists of two hydrogen atoms and one oxygen atom. Color : One Color Department : Unisex Adult ExternallyAssignedProductIdentifier : 7071545116665 ExternallyAssignedProductIdentifier1 : 0840371318843 ExternallyAssignedProductIdentifier2 : 840371318843 ItemForm : Roll ItemName : Dntum Water Electrolysis Apparatus Electrolyte Tester Chemistry Experiment Teaching Apparatus Equipment, Making Hydrogen and Oxygen ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : lab-distillation-apparatus Manufacturer : Dntum Material : Metal MetalType : other ModelName : NETFEN ModelNumber : HUANSHENG NumberOfBoxes : 1 NumberOfItems : 1 NumberOfLithiumMetalCells : 1 NumberOfPieces : 1 PartNumber : SYMXZJ0081114 ProductDescription : Tips: