Which atoms or ions have the following electron configuration1s 25 2p 3s-3p(select all the correct answers for full credit)CaKOArO O O O O 0 If 25 g of sodium reacts with 15 g of water according to the following equation:2Nag + 2H2O- 2NaOHag + H25)How much of the excess reactant remains unreacted?19.2 g5.8 g6.9 g1.02 g

Answered: Which atoms or ions have the following…

Which atoms or ions have the following electron configuration 1s 25 2p 3s 3p (select all the correct answers for full credit) O Ca OK* Ar

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter3: Electronic Structure And The Periodic Law

Section: Chapter Questions

Problem 3.71E

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Question

Which atoms or ions have the following electron configuration
1s 25 2p 3s-3p
(select all the correct answers for full credit)
Ca
K
OAr
O O O O O 0

If 25 g of sodium reacts with 15 g of water according to the following equation:
2Nag + 2H2O- 2NaOHag + H25)
How much of the excess reactant remains unreacted?
19.2 g
5.8 g
6.9 g
1.02 g

Expert Solution

Step 1

Number of electrons = 2 + 2 + 6 + 2 + 6 = 18

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