Table of Contents
What is a mixture of hydrogen and oxygen called?
Oxyhydrogen is a mixture of hydrogen (H2) and oxygen (O2) gases.
Is oxygen An example of a mixture?
*Note: pure oxygen gas consists of molecules but it is still considered an element, rather than a compound, as the molecules are made up of a single type of element….Pure Substances.
Pure Substance | Element or Compound? | Consists of: |
---|---|---|
Ammonia (NH3) | compound | ammonia molecules |
Is hydrogen and oxygen a compound or mixture?
Hydrogen and oxygen are both gases. Together, as a mixture, hydrogen and oxygen can react and form water. Water is a compound of hydrogen and oxygen.
Which samples are mixtures?
Examples include a mixture of colored candies, a box of toys, salt and sugar, salt and sand, a basket of vegetables, and a box of toys. Mixtures with two phases are always heterogeneous mixtures. Examples include ice in water, salt and oil, noodles in broth, and sand and water.
What happens when hydrogen and oxygen are combined?
After one set of hydrogen and oxygen molecules have reacted, the energy released triggers molecules in the surrounding mixture to react, releasing more energy. The result is an explosive, rapid reaction that releases energy quickly in the form of heat, light and sound.
Why does hydrogen have a low activation energy?
Because hydrogen has a low activation energy only a small spark is needed to trigger a reaction with oxygen. Like all fuels, the reactants, in this case hydrogen and oxygen, are at a higher energy level than the products of the reaction. This results in the net release of energy from the reaction, and this is known as an exothermic reaction.
Why do molecules combine into molecules of two?
They combine into molecules of two so that they can share two electrons (one each). This is because the inner-most electron shell is at a lower energy state (and therefore more stable) when occupied by two electrons.