Answer:
Carbon dioxide is an atmospheric constituent that plays several vital roles in the environment. It is a greenhouse gas that traps infrared radiation heat in the atmosphere. It plays a crucial role in the weathering of rocks. ... It is stored in biomass, organic matter in sediments, and in carbonate rocks like limestone.
Explanation:
Answer:
The structure in the first image file attached below shows the arrangement of atoms in hexagonal close packing
we need to show that the ratio between the height of the unit cell divided by its edge length is 1.633
In the structure, the two atoms are shown apart. But in fact the two atoms are touching. Therefore, the edge length is the sum of the radius of two atoms. If we assume r as radius then the expression for edge length will be as follows.
a = 2r ..............(1)
other attached files show additional solutions in steps
Answer:
Electronic configuration of fe is
4s2,3d6
Explanation:
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Ni(s) + CuSO₄(aq) → Cu(s) + NiSO₄(aq)
Ni + Cu²⁺ + SO₄²⁻ → Cu + Ni²⁺ + SO₄²⁻
Ni + Cu²⁺ → Cu + Ni²⁺
The
balanced reaction would be written as:<span>
C7H6O3 + C4H6O3--->C9H8O4 + HC2H3O2
To determine the percent yield, we need to first
determine the theoretical yield if the reaction were to proceed completely.
Then, we divide the actual yield that is given to the theoretical yield times
100 percent. The limiting reactant from the reaction would be salicylic acid.
We do as follows:
<span>Theoretical yield: 1.15 g C7H6O3 ( 1 mol /
138.12 g ) ( 1 mol C9H8O4 / 1 mol C7H6O3 ) ( 180.17 g / mol ) = 1.50 g C9H8O4 should be produced
Percent yield = 1.21 / 1.50 x 100 = 80.66 %<span>
Thus, only 80.66% of the
theoretical C9H8O4 is being produced.</span></span></span>
