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Shtirlitz [24]
3 years ago
15

A metal, M, forms an oxide compound with the

Chemistry
1 answer:
lapo4ka [179]3 years ago
5 0

Answer:

Group 1

Explanation: because the compound has a formula of M2O , the number of valence electrons of M should be 1.

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3 years ago
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3 years ago
A certain liquid X has a normal boiling point of 133.60°C and a boiling point elevation constant Kb= 2.46°C kg mol^-1.Calculate
Afina-wow [57]

Answer:

136.63 °C

Explanation:

ΔTb=Tb solution - Tb pure

Where; Tb pure = 133.60°C

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number of moles of solute; 52.2g/121.14 g/mol = 0.431 moles

molality = 0.431 moles/350 * 10^-3 = 1.23 molal

Then;

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m = 1.23 molal

i = 1

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Tb solution = ΔTb + Tb pure

Tb solution = 3.03 °C + 133.60°C

Tb solution = 136.63 °C

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True or false A(n) rift valley forms where plates diverge on land.
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True

Explanation:

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