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7nadin3 [17]
3 years ago
15

Which elements have the most properties in common with magnesium

Chemistry
1 answer:
Lunna [17]3 years ago
5 0
The group that magnesium is in has all the elements that are alike to it.
Magnesium  is in group 2 which is the alkaline earth metals. So elements similar to it would be calcium, beryllium!

----If you need anymore help in chemistry.....just ask me....im very good at chemistry!
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Calculate the mass of hydrogen in 500 g of Al(C2H3O2)3
Zigmanuir [339]
<span>Answer is: the mass of hydrogen is 22,05 grams.
m(</span>Al(C₂H₃O₂)₃)<span> = 500 g.
M</span>(Al(C₂H₃O₂)₃) = 27 + 6 ·12 + 9 · 1 + 6 · 16 · g/mol = 204 g/mol.<span>
n</span>(Al(C₂H₃O₂)₃) = m(Al(C₂H₃O₂)₃) ÷ M(Al(C₂H₃O₂)₃).
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3 0
3 years ago
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Consider the following reaction:
asambeis [7]

Given reaction:

N2(g) + 3H2(g) → 2NH3(g)

The standard free energy change is given as:

ΔG° = ∑ nΔGf(products) - ∑ nΔGf(reactants)

      = [2ΔGf(NH3(g))] - [ΔGf(N2(g)) + 3ΔGf(H2(g))]

       = [2(-16.48)] - [ 1(0) + 3(0)] = -32.96 kJ

Ans: Free energy of the reaction is -32.96 kJ, i.e. reaction is spontaneous.

     

5 0
3 years ago
Narceine is a narcotic in opium that crystallizes from solution as a hydrate that contains 10.8 mass % water and has a molar mas
Leto [7]

Thewater of hydration x in narceine. xH₂O is 3

<h3>What is Water of Hydration?</h3>
  • In chemistry, water molecules found inside crystals are referred to as "water of crystallization" or "water of hydration." When crystals are formed from aqueous solutions, water is frequently included.
  • The entire mass of water in a substance at a specific temperature is sometimes referred to as water of hydration, and it is typically present in a stoichiometric ratio.
  • The term "water of crystallization" has historically been used to describe water that is not physically linked to the metal cation but is present in the crystalline structure of a metal complex or salt.
  • Many chemicals include water molecules in their crystalline structures when they crystallize from water or solvents that contain water. Heating a sample usually removes the water of crystallization, but the crystalline qualities are frequently lost.

Given that hydrate is 10.8% by mass

molar mass = 499.52 g/mol

calculating the amount of water

mass of water = \dfrac{10.8 \times 499.5}{100}

mass of water = 53.95 g

moles of water = \dfrac{mass}{molar mass}

moles of water = \dfrac{53.95}{18} = 3

then the water of hydration x in narceine. xH₂O is 3

To learn more about water of hydration with the given link brainly.com/question/4355575

#SPJ4

7 0
1 year ago
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