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kozerog [31]
3 years ago
14

What is the mass of 4.50 moles of magnesium chloride, MgCl2?

Chemistry
1 answer:
Vedmedyk [2.9K]3 years ago
7 0

Answer:

427.5g

Explanation:

Given parameters:

Number of moles  = 4.5moles

Unknown:

Mass of MgCl₂  = ?

Solution:

To solve this problem;

     Mass  = number of moles x molar mass

Molar mass of MgCl₂  = 24 + 2(35.5) = 95g/mol

  Mass  = 4.5 x 95  = 427.5g

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Answer:

6

Explanation:

The p sublevel has 3 orbitals, so can contain 6 electrons max. The d sublevel has 5 orbitals, so can contain 10 electrons max. And the 4 sublevel has 7 orbitals, so can contain 14 electrons max.

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3 years ago
Which statement about solids is correct?
TiliK225 [7]

Answer:

B

Explanation:

it is not A because the particles are compressed

it is not C because only liquids and gases can take shape of a container

and its not D because all particles move in a random motion but stay toghether if they are a solid

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2 years ago
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Lynne is riding her bike at a speed of 22.55<br> km/hr. What is this speed in mi/min?
antiseptic1488 [7]

Answer:

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3 years ago
Sparrows with average-sized wings survive severe storms better than those with longer or shorter wings, illustrating?
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Sparrows with average-sized wings survive severe storms better than those with longer or shorter wings illustrates Stabilizing selection.

Stabilizing selection is a natural selection in which stabilized traits are selected rather than any extreme traits by the nature. Nature do not favors any drastic change in the traits over the years.

Stabilizing selection is often confused with or misunderstood as negative or purifying selection.

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Average phenotype is selected and continuously dominates in coming generations.

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