Answer:
isn't this like solid liquid and gas
In chemistry, to be classified as an organic substance, a substance must contain carbon atoms
The number of moles of each product that are formed if 2 moles of Fe2O3 react with 9 moles of CO is 4 moles of Fe and 6 moles of CO2
Explanation
write a balanced chemical reaction
that is FeO3 + 3 CO → 2 Fe + 3CO2
2 moles of Fe2O3 reacted with 3 x2=6 moles of Co to form Fe and CO2 therefore CO was in excess and Fe2O3 was limiting reagent.
use the mole ratio to determine the moles of each product.
that is <em>the mole ratio 0f Fe2O3 : Fe is 1:2 therefore the moles of Fe = </em>2x2=4 moles
<em>the mole ratio of Fe2CO3 : CO2 is 1: 3 therefore the moles of Co2 =</em><em> 2 x3= 6 moles</em>
Answer:
Explanation:
A <em>combustion reaction</em> is the reaction with oxygen along with the release of energy in form of heat or light.
Organic compounds (like CH₄) undergo combustion forming water and CO₂.
The combustion reaction of CH₄ is:
Hence, the first equation from the choices is not showing the combustion reaction of CH₄.
Not only organic compounds can undergo combustion. Metals and no metals can undergo combustion, i.e. metals and no metals can react with oxygen releasing light or heat.
The reaction of copper and oxygen (second choice) is a combustion reaction:
The formation of water (2H₂ + O₂ → 2H₂O) is other example of a combustion reaction where no organic compounds are involved.
On the other hand, the other two equations from the choice list are not reactions with oxygen, so they do not show combustion reactions.