2024年8月17日 · In theory, it's easy to make water from hydrogen gas and oxygen gas. Mix the two gases together, add a spark or sufficient heat to provide the activation energy to start the reaction, and presto—instant water.

2020年6月16日 · Learn how to make water from hydrogen and oxygen. See why the method isn't used to make drinking water, but is used in fuel cells.

2017年4月24日 · While water can be formed through countless chemical reactions, the most efficient way to create a water molecule out of oxygen and hydrogen atoms is to burn hydrogen gas (H2) in the presence of oxygen gas (O2).

Video show how to set up a cool demonstration for exothermic reactions or stochiometry. A bottle is filled with water, then the water is displaced with 1/3 ...

2023年10月19日 · It is not easy to make water because the combination of hydrogen and oxygen atoms is accompanied by the release of tremendous amount of energy. Also, hydrogen is a highly flammable gas and oxygen supports combustion, so when they come together in large quantities, it can result in a full scale, deadly explosion.

2006年10月30日 · When molecular hydrogen (H 2) and oxygen (O 2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or...

2007年12月31日 · A water molecule (formally known as dihydrogen monoxide) is composed of two hydrogen atoms and one oxygen atom. But you can’t simply take two hydrogen atoms and stick them onto an oxygen atom. The actual reaction to make water is a bit more complicated: 2H2 + O2 = 2H2O + Energy.

2021年9月29日 · At first glance, making water seems simple, since it only consists of two elements: oxygen and hydrogen, which are also very common. In theory, it is possible to make water if both gases are mixed and enough heat is provided to start the chemical reaction between these elements.

As a result, pairs of hydrogen atoms team up with individual oxygen atoms in a relatively dense but loose arrangement of H2O molecules we call liquid water. Read more: Is fire a solid, liquid …

2025年1月30日 · Water’s Polarity. One of water’s important properties is that it is composed of polar molecules: the hydrogen and oxygen within water molecules (H 2 O) form polar covalent bonds. While there is no net charge to a water molecule, water's polarity creates a slightly positive charge on hydrogen and a slightly negative charge on oxygen, contributing to water’s …