In carbondioxide: CH4 + 3 O2 ==> CO2 + 2 H2O
Methane burns in oxygen and gets oxidised. Carbon is oxidised to carbon dioxide, hydrogen to water.
Oxygen, Carbon, Hydrogen. <- There are three new ones.
Hydrogen (H2) is an example of a substance that yields only water and heat when it burns. When hydrogen burns in the presence of oxygen, it combines to form water (H2O) as the only byproduct, making it a clean and efficient fuel source.
When sugar burns, it creates a new substance. It's not possible that it's a physical change. So, it's a chemical change !
In carbondioxide: CH4 + 3 O2 ==> CO2 + 2 H2O
it burns and seperates actually it burns and oxygen burns it , methane is the gas that we mostly use in southern countries for cooking
Methane burns in oxygen and gets oxidised. Carbon is oxidised to carbon dioxide, hydrogen to water.
Oxygen, Carbon, Hydrogen. <- There are three new ones.
Hydrogen (H2) is an example of a substance that yields only water and heat when it burns. When hydrogen burns in the presence of oxygen, it combines to form water (H2O) as the only byproduct, making it a clean and efficient fuel source.
Hydrogen is a colorless gas that burns with oxygen. If substances will burn in air, those same substance will burn better in oxygen.
It's a chemical change. Any time you have a change in the chemical formula of a substance, you have a chemical change. The chemical formula of hydrogen is H[2], and the chemical formula of oxygen is O[2]. The chemical formula of water is H[2]O. 2 H[2] + O[2] --> 2 H[2]O. If you were watching this happen in a lab, you'd watch two colorless gases react to form a single colorless liquid. A change in state (solid, liquid, or gas) that cannot be due to heating or cooling is nearly always a sign of a chemical change.
When sugar burns, it creates a new substance. It's not possible that it's a physical change. So, it's a chemical change !
combustible?
When hydrogen burns in chlorine gas, it undergoes a chemical change. This is because new substances are formed as a result of the reaction, such as hydrogen chloride. The properties of the starting materials are different from those of the products.
When methane is heated strongly, it undergoes a process called pyrolysis, breaking down into simpler compounds like carbon and hydrogen. This can result in the formation of volatile hydrocarbons, carbon black, and even soot.
When hydrogen burns in air with H2+O2= H20