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defon
3 years ago
5

Which lava composition causes the most volcanic eruptions? Why?

Chemistry
1 answer:
ddd [48]3 years ago
5 0

Answer:

Explosive eruptions are favored by high gas content & high viscosity magmas (andesitic to rhyolitic magmas). The explosive bursting of bubbles fragments the magma into clots of liquid that cool as they fall through the air. These solid particles become pyroclasts or volcanic ash.

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You have 16.7 grams of hydrogen and 15.4 grams of oxygen in a synthesis rxn. Which is the limiting reagent?
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Answer:

oxygen is limiting reactant

Explanation:

Given data:

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Limiting reactant = ?

Solution:

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2H₂ + O₂   →   2H₂O

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Number of moles = 0.48 mol

Now we will compare the moles of both reactant with product,

                 

                             H₂           :          H₂O

                              2            :            2

                             8.35        :            8.35

                             O₂           :          H₂O

                               1            :            2

                             0.48        :        2×0.48 = 0.96 mol

The number of moles of water produced by oxygen are less so it will limiting reactant.

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DNA molecules are replicated during what part of the cell cycle
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