Answer:
1.5 x 10²²atoms
Explanation:
Given parameters:
Mass of Br = 1.98g
Unknown:
Number of atoms
Solution:
A mole of a substance is the amount of substance contained in the avogadro's number of particles.
To solve this problem, we must first find the number of moles present in the given mass of the Br atom:
Number of moles =
=
= 0.025mole.
Now we know that:
1 mole = 6.02 x 10²³
0.025 mole = 0.025 x 6.02 x 10²³ = 1.5 x 10²²atoms
I think it is d. Because the process is not reversible and it a chemical process
Answer:
6 moles of oxygen
Explanation:We can find from the chemistry equation
C3H7SH(l)+6O2---3CO2(g)+SO2(g)+4H2O(g)
6 moles O2 ~4 moles H2O
<span>*The difference between malleability and ductility is that malleability is the ability to deform easily upon the application of a compressive force, and ductility is doing the same with tensile force.
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It weathers it down until it is nothing but sediment in a river , lake or ocean