Answer:
Cold air surrounds food and slows the spoiling process
Answer:
Hydrogen sulfide is an newly recognized signical molecule with very potent cytoprotective actions.
Answer:
5.450 mol Si₃N₄
Explanation:
Step 1: Write the balanced equation
3 Si + 2 N₂ ⇒ Si₃N₄
Step 2: Establish the theoretical molar ratio between the reactants
The theoretical molar ratio of Si to N₂ is 3:2 = 1.5:1.
Step 3: Establish the experimental molar ratio between the reactants
The experimental molar ratio of Si to N₂ is 16.35:11.26 = 1.45:1. Comparing both molar ratios, we can see that Si is the limiting reactant.
Step 4: Calculate the moles of Si₃N₄ produced from 16.35 moles of Si
The molar ratio of Si to Si₃N₄ is 3:1.
16.35 mol Si × 1 mol Si₃N₄/3 mol Si = 5.450 mol Si₃N₄
The reaction that will result in a decrease in entropy is:
- N₂(g) + 3H₂(g) → 2NH3(g).
<h3>What is entropy of a substance?</h3>
Entropy is a measure of the degree of randomness of a substance.
An increase in entropy means an increase in disorderliness whereas a decrease in entropy means an increase in orderliness.
A change of state from gas to liquid or gas to solid or liquid to solid means a decrease in entropy value.
Also, a decrease in the moles of a gas after a reaction means a decrease in entropy.
Therefore, the reaction that will result in a decrease in entropy is:
N₂(g) + 3H₂(g) → 2NH3(g).
Learn more about entropy at: brainly.com/question/419265
#SPJ1
Element: Boron
Symbol: B
So answer is B
