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EleoNora [17]
3 years ago
15

Explain how convection currents drive tectonic plate movement. In your answer, describe the role of energy transfer in the movem

ent of tectonic plates.
Chemistry
2 answers:
zavuch27 [327]3 years ago
7 0

Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle. In places where convection currents rise up towards the crust's surface, tectonic plates move away from each other in a process known as seafloor spreading

Sedbober [7]3 years ago
4 0
Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat. ... Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth's crust.
https://manoa.hawaii.edu › node
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In the decomposition potassium nitride, 10.65 g of nitrogen form. How much potassium nitride was present initially ?
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Answer:

Mass =  99.8 g  

Explanation:

Given data:

Mass of potassium nitride = ?

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Solution:

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2K₃N→ 6K + N₂

Moles of nitrogen:

Number of moles = mass/ molar mass

Number of moles =  10.65 g / 28 g/mol

Number of moles = 0.38 mol

Now we will compare the moles of nitrogen with potassium nitride.

                        N₂              ;         K₃N

                         1               :            2

                         0.38          :          2×0.38 =0.76

Mass of potassium nitride:

Mass = molar mass × number of moles

Mass =    131.3 g/mol ×   0.76 mol

Mass =  99.8 g    

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