Answer:
He.
Explanation:
- Graham's law states that the effusion rate is inversely proportional to the molecular weight. It means that the gas with the lowest molecular weight will have the highest effusion rate.
The molecular weights of the given gases are:
Cl₂ = 70.9 g/mol.
He = 2.0 g/mol.
O₂ = 32.0 g/mol.
Ne = 20.17 g/mol.
<em>Since He has the smallest molecular mass, so it will have the highest rate of effusion.</em>
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It can uplift slowly due to the pressure of Earth’s plates.
It can melt into magma and recrystallize as extrusive igneous rock.
I think there are about four compounds that are listed above that are soluble in water. These are NaOH, MgSO4, MgCO3 and Ba(NO3)2. <span>In chemistry, solubility of a substance is a quantitative term that refers to the amount of substance that can dissolve in a given volume of a solvent.</span>
Answer:
1.42m/s
Explanation:
velocity=displacement/time
v=50/35=1.42m/s
Answer:
0.2g of hydrogen is needed to produce 1.80g of water
Explanation:
No. of moles of water
From given values,
Weight of water 
Molecular weight of water 
No. of moles of water
From equation, it is clear that 2 moles of water can be formed by 2 moles of 
Hence, 0.1 mole of water can be formed from 0.1 mole of
Now,
No. of moles of 
