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UNO [17]
3 years ago
8

Which of the following best describes how further studies supported the work done by Max Planck in the field of quantum mechanic

s? (1 point)
James Chadwick discovered neutral particles in the nucleus.
Antoine Lavoisier determined the Law of Conservation of Mass.
Niels Bohr determined that electrons inhabit distinct energy levels.
Joseph Proust stated that each compound has a fixed ratio of elements.
Chemistry
2 answers:
givi [52]3 years ago
7 0

Answer:

Neils Bohr determined that electrons inhabit distinct energy levels.

Explanation:

zhuklara [117]3 years ago
3 0

Answer:

Neils Bohr determined that electrons inhabit distinct energy levels.

Explanation:

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Where is neon found in earth? South America? North America?
givi [52]
Neon is usually found in the form of a gas with molecules consisting of a single Neon atom. Neon is a rare gas that is found in the Earth's<span> atmosphere at 1 part in 65,000. I'm not 100% sure but i am pretty sure it is found in both places but more is in South America. Just incase, wait for someone else to answer.</span>
8 0
3 years ago
We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
zloy xaker [14]

Answer:

We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the <u>phosphate</u> group attached to the 5' carbon atom of the sugar portion of a nucleotide and the <u>hydroxyl</u> group attached to the <u>3'</u> carbon atom

Explanation:

Nucleic acids are polymers formed by a phosphate group, a sugar (ribose in RNA and deoxyribose in DNA) and a nitrogenous base. In the chain, the phosphate groups are linked to the 5'-carbon and 3'-carbon of the ribose (or deoxyribose) and the nitrogenous base is linked to the 2-carbon. Based on this structure, the nucleic acid chain orientation is identified as the 5'-end (the free phosphate group linked to 5'-carbon of the sugar) and the 3'-end (the free hydroxyl group in the sugar in 3' position).

3 0
3 years ago
If you were asked to convert 4.2 × 1022 atoms of aluminum to moles, which of the following should you use for the conversion?
DanielleElmas [232]
<span><span>4.2×1022</span>NA</span><span> N_{A} is the avagadro number</span>
7 0
3 years ago
Calculate the molar solubility of silver chloride in 0.15 M sodium chloride.
Alex777 [14]

Answer:

S = 1.1 × 10⁻⁹ M

Explanation:

NaCl is a strong electrolyte that dissociates according to the following expression.

NaCl(aq) → Na⁺(aq) + Cl⁻(aq)

Given the concentration of NaCl is 0.15 M, the concentration of Cl⁻ will be 0.15 M.

We can find the molar solubility (S) of AgCl using an ICE chart.

      AgCl(s) ⇄ Ag⁺(aq) + Cl⁻(aq)

I                         0            0.15

C                      +S              +S

E                        S            0.15+S

The solubility product (Ksp) is:

Ksp = 1.6 × 10⁻¹⁰ = [Ag⁺].[Cl⁻] = S (0.15 + S)

If we solve the quadratic equation, the positive result is S = 1.1 × 10⁻⁹ M

6 0
2 years ago
Read 2 more answers
What goes in the blank?
Anon25 [30]
Protons goes in the blank. the word can be used for both.
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3 years ago
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