3 years ago

Harry Hess resurrected Wegener’s continental drift hypothesis and also the mantle convection idea of Holmes.

Chemistry

2 answers:

stepan [7]3 years ago

7 0

Answer:

true

Explanation:

aleksklad [387]3 years ago

3 0

He is right its True

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3 years ago

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pentagon [3]

We are given with the mass of Arsine ( $AsH_{3}$

The mass of arsine is 15g

there is a relation between moles, mass and molar mass of any compound which is

$moles=\frac{mass}{molarmass}$

The molar mass of Arsine = atomic mass of As + 3X atomic mass of H

the molar mass of Arsine = 74.92 + 3X 1 = 77.92 g/mol

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3 years ago

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erica [24]

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ehidna [41]

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