Answer:
Explanation:
Discussion
When Pressure increases equilibrium shifts to the side with the smallest number of moles. But which side is that?
N2(g) + 3H2(g) ⇌ 2NH3(g)
The left side has 1 mol of nitrogen (N2) and 3 moles of Hydrogen = 4 mols
on the left side.
The right side has 2 mols of NH3 = 2 mols on the right.
Conclusion: You tell the number of mols by the Balance numbers to the left of each chemical in an equation.
Since the left side N2 + 3H2 = 4 mols, the equilibrium does NOT shift left.
2NH3 is only two mols.
The equilibrium shifts Right
Answer
D
Answer:
The answers are as given in the attachment
Explanation:
The application of the de brogile equation was used and appropriate substitution were made as shown in the attachment
Answer:
Since all the acid molecules have split into ions, there will be more H+ ions in a strong acid than a weak acid, hence it's pH is lower! E.g. Hydrochloric acid HCl, nitric acid HNO3. If one mole of an acid is neutralised by 2 moles of NaOH, then the acid is dibasic!
Explanation:
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We need to multiply the 2nd equation by two and reverse it.
Option D
<h3><u>Explanation:</u></h3>
In the 2nd reaction, it says H₂ +F₂ =2HF.
So, multiplying it by 2 gives 2H₂ + 2F₂ = 4HF.
Reversing it gives 4HF = 2H₂ +2F₂.
Now the 1st equation says 2H₂ +O2 =2H₂O.
Adding them gives
2H₂ +O₂ +4HF = 2H₂ +2F₂ +2H₂O.
Or, O₂ +4HF = 2H₂O + 2F₂.
this is the balanced reaction.
Answer:
Alloy
Explanation:
Alloy: An alloy is a substance prepared by adding one or more element to a base or parent metal to obtain desirable products. The added element are usually metals or carbon. An alloy can be considered as a uniform mixture.
Examples of Alloy:
⇒ Brass is an alloy that contains 60 - 80% of copper and 20- 40% of zinc.
⇒Bronze is an alloy that contains 90% of copper and 10% of tin.
⇒ Steel is an alloy that contains 99.8% of iron and 0.2% of carbon.
Uses of Alloys:
⇒ They are used for making coins and medals
⇒ They are used in the construction of aircraft, ships and cars.
⇒They are used for making electromagnet.
