What is the composition of the mantle

2 answers:

7 0

The mantle under the crust is about 1,800 miles deep (2,890 km). It is composed mostly of silicate rocks rich inmagnesium and iron. Intense heat causes the rocks to rise. They then cool and sink back down to the core.

Sever21 [200]3 years ago

7 0

Answer:

The mantle is the middle layer of the earth, and it has a thickness of about 2900 km. It covers approximately 85% of the total earth's volume. This layer is comprised of elements such as oxygen, silicon, magnesium, aluminum, sodium, calcium, and iron. The rocks present here are mostly silicate rocks and are dominant in olivine, pyroxene, iron, and magnesium. These are denser minerals.

The mantle is again sub-divided into 2 distinct parts namely, upper mantle (includes the layer of asthenosphere) and lower mantle.

The upper mantle is comparatively less solid in nature in comparison to the lower mantle, which is marked by the presence of the asthenosphere layer, in which the rocks tend to flow in response to deformation.

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Oduvanchick [21]

Answer:

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Explanation:

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54.0 g ÷ 44 g/mol = 1.23 mol C₃H₈

Then we convert 1.23 moles of C₃H₈ into moles of CO₂, using the stoichiometric coefficients:

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How many grams of lead(II) sulfate (303 g/mol) are needed to react with sodium chromate (162 g/mol) in order to produce 0.162 kg

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Explanation :

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The balanced chemical reaction will be,

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