Answer:
The difference between the energy of the reactants and the energy of the products is called the enthalpy change (∆H) of the reaction. For an exothermic reaction, the enthalpy change is always negative. In an endothermic reaction, the products are at a higher energy than the reactants.
Explanation:
2 different elements- carbon and oxygen.............................
Answer: 633.6 g of
can be produced from the decomposition of 4.8 moles of 
Explanation:
The balanced chemical equation for decomposition of
is :
According to stoichiometry :
1 mole of
produce = 3 moles of 
Thus 4.8 moles of
will rproduce=
of 
Mass of 
Thus 633.6 g of
can be produced from the decomposition of 4.8 moles of 
Answer:
Initial rate of reaction is
.
Explanation:
It is a second order reaction.
Initial rate of reaction =
, where k is rate constant,
is the initial concentration of
and
is the initial concentration of NO.
Here, k =
,
and ![[NO]_{0}=8.65\times 10^{-5}M](https://tex.z-dn.net/?f=%5BNO%5D_%7B0%7D%3D8.65%5Ctimes%2010%5E%7B-5%7DM)
So, initial rate of reaction = 
= 
So, initial rate of reaction is 