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snow_tiger [21]
4 years ago
13

Balanced equation of magnesium metal and hydrochloric acid

Chemistry
1 answer:
Setler79 [48]4 years ago
6 0

The balanced chemical equation is,

2Mg+2HCl→2MgCl+H2↑

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The enthalpy of fusion of H2O (s) at its normal melting point is 6.01 kJ/mol. What is the entropy change for freezing 1 mole of
Rom4ik [11]

Answer:

22.01J/Kmol

Explanation:

The parameters given in this question are;

Enthalpy (H) = 6.01 kJ/mol.

Number of moles = 1

Entropy change (S) = ?

The formular relationship between entropy and enthalpy is given as;

ΔS=ΔH/T

Temperature for water at freezing point = 0C + 273 = 273 K (converting to Kelvin)

ΔS = 6.01/273

ΔS = 0.0220kJ/Kmol

ΔS = 0.02201 * 1000 = 22.01J/Kmol

3 0
3 years ago
Determine the ph of a 0.00598 m hclo4 solution. 1.777 6.434 7.566 2.223 3.558
Black_prince [1.1K]
Answer: 2.223
Explanation:
HClO4, also known as perchloric acid, is a very strong. This means we can assume that complete dissociation occurs.
This means that:
[H+] = [HClO4] = <span>0.00598

pH = -log[H+]
pH = -log[</span><span>0.00598] = 2.223

Note: The base of the log is 10 (conventionally we don't write the base if it is 10)</span>
4 0
4 years ago
Read 2 more answers
Sodas typically contain sugar, flavorings, coloring agents, and carbon dioxide dissolved in water. the best term to describe thi
Setler79 [48]
A dissolved mixture when it mixed together hope this helps
8 0
3 years ago
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Whats the answer to #11
morpeh [17]

Well, one mole would be considered as 6.02 x 1023 (atoms). Which in the copper form, this would be considered to be as 63.66 grams of copper. Know, by knowing this information, we're now able to figured out the question.

53.3 ÷ (atoms) 6.02 x 1023 ...

Which as a result, we then have 2665 over.

8 0
3 years ago
Which type of crust combination CANNOT undergo subduction?
nordsb [41]

Answer:

the correct answer is B

Explanation:

Subduction: they present if or if two Convergent edges or subduction zones (destructive edges). Where two plates collide, due to having movements with opposite directions, the denser one sinks below the less dense one along what is known as the subduction zone; the subducting plate goes into the mantle, heating up and partially melting generating magma that rises to the surface. A subduction zone is characterized by deformation, volcanism, mountain formation, metamorphism, seismic activity, and significant mineral deposits.

This phenomenon occurs between oceanic plates or between a continental and an oceanic plate, since when there is a difference in density they subduct.

In the event that the edges of two continental plates collide, it would be OBDUCTION, which is another phenomenon other than subduction. mantle does not produce the correct subduction process, as the movement must be absorbed in some way, this is carried out by vertically deforming both plates, which are joined by a suture area, forming an inner mountainous belt and Suffering, in addition, numerous earthquakes. This process is very important, since it is the one that has given rise to the highest mountain ranges on Earth and is a very active process at present (Ex: Los Alpes, Los Montes Urales and Montes Himalaya).

6 0
3 years ago
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