2 years ago

Which of the following elements with exhibit the greatest shielding effect

Chemistry

1 answer:

Dafna11 [192]2 years ago

8 0

Rubidium would exhibit the greatest shielding [ effect. ]

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Which ion would represent the ion of an element from Group 2A?

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2 years ago

How many moles is in 2.52*10^24 molecules of water?

nataly862011 [7]

Hi friend
--------------
Your answer
-------------------

Water = H2O

Number of molecules in one mole of water = 6.022 × 10²³ [Avogadro's constant]

Given number of molecules = 2.52 × 10²³

So,
------

Number of moles =
$\frac{2.52 \times 10 {}^{24} }{6.022 \times 10 {}^{23} } \\ \\ = 4.184 \: (approximately)$

HOPE IT HELPS

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2 years ago