Answer:
<h2>0.52 moles </h2>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula

where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have

We have the final answer as
<h3>0.52 moles</h3>
Hope this helps you
Answer:
a,c and d are exothermic
b is the endothermic
Explanation:
exothermic because energy required to form products is less than the energy required to break bonds in reactants.
endothermic because energy required to form products is larger than the energy required to break bonds in reactants.
The question is incomplete. Complete question is attached below
..........................................................................................................................
Answer:
Equilibrium constant (K) is defined as the ratio of concentration of product to concentration of reactant.
For the reaction: 2H2O(g) ↔ 2H2(g) + O2(g)
Equlibrium constant =
![\frac{[H_2]^2[O_2]}{[H_20]^2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%5BH_2%5D%5E2%5BO_2%5D%7D%7B%5BH_20%5D%5E2%7D%20)
[ ] bracket in above expression indicates concentration.
Explanation:mok in this we learning about sum multiplication on a chart but it to small but the answer 52