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adelina 88 [10]
3 years ago
5

Identify bohrs model of the atom. His model described the reactivity of an element based on its number of valence electrons.

Chemistry
2 answers:
miss Akunina [59]3 years ago
8 0

Answer:

E

Explanation:

In Bohr’s atomic model electrons move in discrete orbits around the nucleus of an atom. The energy of the electrons are quantized. Bohr’s model explained that electrons move with a certain angular momentum in discrete orbits. Bohr’s model explained why electrons do not spin into the nucleus and thus proved the stability of atoms.

4vir4ik [10]3 years ago
6 0
E is Bohrs model the dots on the rings represent the valence electrons
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Answer:

<u></u>

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Explanation:

Since sulfuric acid, H₂SO₄, is a diprotic acid and potassum hydroxide, KOH, contains one OH⁻ in the formula, the number of moles of potassium hydroxide must be twice the number of moles of sulfuric acid.

<u>1. Determine the number of moles of KOH in 47mL of 0.39M potassium hydroxide solution</u>

  • number of moles = molarity × volume in liters
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<u>3. Determine the concentration that contains 0.009165 mol in 25mL of the acid.</u>

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  • M = 0.009165mol/(25mL) × (1,000mL/liter) = 0.3666M

Round to two significant figures: 0.37M

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