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Gnesinka [82]
3 years ago
6

23.10 grams of aluminum metal are dissolved in a solution that contains 1.89 mol of hydrochloric acid to yield aluminum chloride

(AlCl3 ) and hydrogen gas according to the following balanced chemical equation. What is the limiting reactant?
2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
Chemistry
1 answer:
Bess [88]3 years ago
3 0
You first of all need to have both quantities of reactants in either grams or moles and then you use stoichiometry to find out the quantities of product and then you determine what the limiting reactant is based on the smaller quantity of product.
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describe how knowledge of the periodic table would be important in three different careers, based on what you’ve read.
ANEK [815]

The knowledge of periodic table would be important in these three different careers such as medicine, pharmacology and engineering.

<h3>What is the importance of periodic table in following careers?</h3>

Periodic table is organised the whole elements vertically in groups and horizontally in periods with increasing atomic number.

The knowledge of arrangement of these elements serves alot of purposes in the following three different careers:

  • Medicine: The element, iron is an important metal in the periodic table used in treatment of low blood levels.

  • Pharmacology: The transition metals are useful in the field of pharmacology for the production of drugs. Example of such elements are chromium, manganese, cobalt, nickel, copper, and molybdenum.

  • Engineering: The information of elements in the periodic table helps engineers in designing of materials used for constructions.

Therefore, the knowledge of periodic table is very important in these three different careers such as medicine, pharmacology and engineering.

Learn more about period table here:

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5 0
3 years ago
Which description best characterizes the motion of particles in a solid
bixtya [17]
<span>The movement of particles within a solid is extremely slow when compared to that of a gas. It is also significantly slower in movement than that of the movement found within the particles of liquid. The more movement present and the faster the movement of the particles the more space will be present between each particle. This causes the material to spread out as they become less densely packed within a solid material.</span>
8 0
3 years ago
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When chromium loses two electrons, its configuration changes to
damaskus [11]

Electronic configuration of cromium is  

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So its electronic configuration becomes,  

Cr⁺²-[Ar]3d⁴  

One electron will go from 4s orbital and one electron will go from 3d orbital.

So the answer here is D. [Ar]3d⁴ -because after losing 2 electrons electronic configuration of cromium becomes  [Ar] 3d⁴.


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In a nuclear power plant control rods are used to
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Help if possible!<br> Picture attached with the problems.
MAVERICK [17]
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M = mol/L
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