The answer is not A because in A, two aqueous solutions(solutions which are diluted and aren’t concentrated) are reacting to produce a gas.
Answer:
2.17 mol
Explanation:
Given data:
Number of moles of potassium = 4.34 mol
Moles of hydrogen gas produced at STP = ?
Solution:
Chemical equation:
2K + 2H₂O → 2KOH + H₂
Now we will compare the moles of hydrogen and potassium.
K : H₂
2 : 1
4.34 : 1/2×4.34 = 2.17 mol
So, from 4.34 moles of potassium 2.17 moles of hydrogen are produced at STP.
Answer:
But it is not used as domestic fuel, due to several reasons : Hydrogen is not easily available and cost of production is high Unlike other gases, hydrogen is not readily available in the atmosphere. It requires processes like electrolysis of water for its production. This is a very costly process and time consuming.
Explanation:
Answer:
1 Sodium, 1 Aluminum (1 Sulfur, 4 Oxygen)
Explanation:
hope that helps
Answer: The atomic radius of a hydrogen atom is 742=37 pm 74 2 = 37 pm .
Explanation: