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JulsSmile [24]
4 years ago
13

As the elements in a group 1 of the periodic table are considered from top to the bottom each successive element has a

Chemistry
1 answer:
kap26 [50]4 years ago
7 0
<h2>Answer:</h2>

<u>Decreasing Ionization energy</u>

<h2>Explanation:</h2>

As elements of Group 1 of the Periodic Table are considered in order from top to bottom, the ionization energy of each successive element decreases. This decrease is due to increasing radius and increasing shielding effect. In other words when we move to the right of a period, the number of electrons increases and the strength of shielding increases. As a result, it is easier for valence shell electrons to ionize, and thus the ionization energy decreases down a group.

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Answer:

For a volume of 1 liter, we have a total mass of 220 grams of CaCl2 ( Option A)

Explanation:

<u>Step 1: </u>Given data

The concentration of the solution we want to make is 2M

2M = 2 moles/ L So the volume = 1L

The molar mass of CaCl2 is = 40 + 2*35 = 110g/mole

<u>Step 2:</u> Calculate number of moles

If we consider the volume = 1 L then for a concentration of 2M, this means the number of moles is 2

<u>Step 3:</u>  Calculate mass

The molar mass of CaCl2 = 110 g/mole

This means 110 grams per 1 mole

for 2 moles the mass is 220 grams

This means that for a volume of 1 liter, we have a total mass of 220 grams of CaCl2

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