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ss7ja [257]
1 year ago
9

Is Chemistry the study of the submicroscopic, the microscopic, the macroscopic, or all three?

Chemistry
1 answer:
alexandr402 [8]1 year ago
4 0

The question requires us to comment on what are the subjects studied by Chemistry.

Chemistry is the study of all matter and the transformations that this matter undergo. As matter exists in macroscope (all of we can see, touch and measure directly), microscope (the small particles that compose all matter) and submicroscope (the smallest particles that make up the microscope particles) forms, we can say that Chemistry englobes the study of macroscope, microscope and submicroscope matter.

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Why is steam distillation prefered over fractional distillation for the extraction of essencial oils?​
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Which property of isotopes makes them suitable for determining the dates of ancient artifacts?
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8 0
3 years ago
Fe(s) + S(s) → FeS(s)
insens350 [35]

The mass of FeS formed : 11.97 g

<h3>Further explanation</h3>

Reaction

Fe(s) + S(s) → FeS(s)

mass Fe=7.62 g

mol Fe(MW=56 g/mol) :

\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{7.62}{56}\\\\mol=0.136

mass S=8.67 g

mol S(MW=32 g/mol) :

\tt mol=\dfrac{8.67}{32}=0.271

Limiting reactant : smaller ratio(mol:coefficient) ⇒coefficient=1

Fe : S =0.136 : 0.271⇒Fe limiting(smaller), S excess

Mol FeS based on Fe , so mol FeS=0.136

Mass FeS(MW=88 g/mol) :

\tt mass=mol\times MW\\\\mass=0.136\times 88=11.97~g

5 0
3 years ago
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