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iren [92.7K]
3 years ago
13

Which of the following is a reasonable ground-state electron configuration? a. 1s22s22p43s2 b. 1s21p62s22p6 c. 1s22s22p63s23p64s

24d10 d. 1s22s22p63s23p64s23d5
Chemistry
1 answer:
Nana76 [90]3 years ago
7 0
A ground state electron configuration, according to atomic science, follows the Aufbau principle in which all orbitals are filled in increasing energy. In this case, we just try to look up if the lower energy levels such as s-orbital are filled with 2 electrons, p has 6 electrons, d has 10, etc and follows the order of electronic configuration. Answer is C. 1s22s22p63s23p64s24d10 
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Which of the following items would dissolve most quickly in a glass of warm water?
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A. a spoonful of granulated sugar

Explanation:

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3 years ago
State two methods to increase the rate of the chemical reaction and explain
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Answer:

METHOD 1: (surface area of a solid reactant)  METHOD 2: (concentration or pressure of a reactant)

Explanation:

METHOD 1: (surface area of a solid reactant) Increasing the surface area of a solid reactant exposes more of its particles to attack. This results in an increased chance of collisions between reactant particles, so there are more collisions in any given time and the rate of reaction increases.

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3 0
3 years ago
Describe, in detail, how to make 5.5 liters of a 2.5 molar HCl solution from a 10.5 molar HCl stock solution.
Misha Larkins [42]
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5 0
3 years ago
Avogradro's number is the number of particles in one gram of carbon- 12 atom true or false?​
LiRa [457]

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True

Explanation:

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5 0
3 years ago
Which of the following electron configurations are written incorrectly?
Lynna [10]

Answer:

The electronic configuration that are incorrectly written is 1s²2s³2p⁶, 4s²3d¹⁰4p⁷, 3s¹ and 2s²2p⁴.

Explanation:

The electronic configuration of the elements corresponds to how all the electrons of an element are arranged in energy levels and sub-levels.

There are 7 energy levels —from 1 to 7— whose sublevels are described as s, p, d and f.

All electronic configurations begin with the term "1s" —corresponding to the sublevel s of level 1— so 4s²3d¹⁰4p⁷, 3s¹ and 2s²2p⁴ are incorrectly written. In addition, 4s²3d¹⁰4p⁷ is written incorrectly because is impossible to jump from the sublevel "s" to the sublevel "d" —which is found from level 3 and up— without passing through the sublevel "p".

In the case of 1s²2s³2p⁶, the wrong thing is that the sublevel "s" can only hold two electrons, not three.

The other options are correctly written.

3 0
3 years ago
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