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iren [92.7K]
3 years ago
15

The earth consist of how many chemical layers ?

Chemistry
2 answers:
Pani-rosa [81]3 years ago
8 0
Three. The crust, The mantle. And the core
Lostsunrise [7]3 years ago
6 0
THREE MAIN LAYERS
.Lithosphere (crust)
.Mantle
.core
<span>Now specifically </span>
FIVE LAYERS
.Lithosphere
.outer mantle
.inner mantle
.outer core
<span>.inner core </span>
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Calculate the energy required to melt 21 g of ice at 0 oC.
vladimir1956 [14]

<u>We are given:</u>

Mass of ice = 21 grams

The ice is already at 0°c, the temperature at which it melts to form water

Molar heat of fusion of Ice = 6.02 kJ/mol

<u>Finding the energy required:</u>

<u>Number of moles of Ice: </u>

Molar mass of water = 18 g/mol

Number of moles = given mass/ molar mass

Number of moles = 21 / 18 = 7/6 moles

<u>Energy required to melt the given amount of ice:</u>

Energy = number of moles * molar heat of fusion

Energy = (7/6) * (6.02)

Energy = 7.02 kJ OR 7020 joules

7 0
3 years ago
The following equilibrium is formed when copper and bromide ions are placed in a solution:
JulsSmile [24]

Answer:

A)

1. Reaction will shift rightwards towards the products.

2. It will turn green.

3. The solution will be cooler..

B) It will turn green.

Explanation:

Hello,

In this case, for the stated equilibrium:

heat + Cu(H_2O)_6 ^{+2} (blue) + 4Br^- \rightleftharpoons 6H_2O + CuBr_4^{-2} (green)

In such a way, by thinking out the Le Chatelier's principle, we can answer to each question:

A)

1. If potassium bromide, which adds bromide ions, is added more reactant is being added to the solution, therefore, the reaction will shift rightwards towards the products.

2. The formation of the green complex is favored, therefore, it will turn green.

3. The solution will be cooler as heat is converted into "cold" in order to reestablish equilibrium.

B) In this case, as the heat is a reactant, if more heat is added, more products will be formed, which implies that it will turn green.

Regards.

3 0
3 years ago
What is the percent concentration of a 250 ml solution with 0.120 g nacl?
Effectus [21]
0.048 percent is the answer
3 0
3 years ago
Which correctly lists the types of matter, in terms of their atoms, in order from least tightly packed to most tightly packed? s
SSSSS [86.1K]

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Explanation:

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4 years ago
Which type of electromagnetic radiation is most likely to be non-ionizing
Sunny_sXe [5.5K]

Answer:

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Explanation:

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