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SpyIntel [72]
2 years ago
13

In all atoms of bismuth, the number of electrons must equal the:

Chemistry
2 answers:
weqwewe [10]2 years ago
5 0

Answer:

the ans is 1: number of protons

balandron [24]2 years ago
4 0

Answer:

Number of protons

Explanation:

  • An atom is the smallest particle of an element that can take part in a chemical reaction.
  • The atoms of an element such as bismuth are made up of subatomic particles protons, neutrons, and electrons.
  • Protons are the positively charged particles found in the nucleus of an atom together with the neutrons while electrons are the negatively charged particles surrounding the nucleus in energy levels of an atom.
  • The number of electrons and protons in a neutral atom is equal. Therefore, all neutral atoms of an element such as bismuth have an equal number of protons and electrons.
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47.5 mm

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Students working in lab accidentally spilled 17 l of 3.0 m h2so4 solution. they find a large container of acid neutralizer that
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Answer is: 8568.71 of baking soda.

Balanced chemical reaction: H₂SO₄ + 2NaHCO₃ → Na₂SO₄ + 2CO₂ + 2H₂O.

V(H₂SO₄) = 17 L; volume of the sulfuric acid.

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n(H₂SO₄) = V(H₂SO₄) · c(H₂SO₄).

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n(NaHCO₃) = 102 mol, amount of baking soda.

m(NaHCO₃) = n(NaHCO₃) · M(NaHCO₃).

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2 years ago
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A sample of an unknown compound was decomposed and found to be composed of 1.36 mol oxygen, 4.10 mol hydrogen, and 2.05 mol carb
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Answer:

C3H6O2

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To find the empirical formula of the compound, we divide the amount in moles of each of the elements by the amount in mole of the element with the smallest number of mole. In this question, the element with the smallest number of moles is oxygen with 1.36 mole. Hence, we divide the number of moles of each element by this.

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C = 2.05/1.36 = 1.5

We then multiply through by 2 to yield the compound with the empirical formula C3H6O2

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2 years ago
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