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Hatshy [7]
3 years ago
12

What is the atomic size going across a period (left or right)? what causes this trend?

Chemistry
1 answer:
natka813 [3]3 years ago
5 0
The atomic size decreases; this is because as you go across the period, more electrons are found in the outer shell. As more electrons are added, the more attraction there is between the protons, in the nucleus, and the electrons, making the atom smaller.
Hope this helps!
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Answer:

SO₂ + 0.5 O₂ + H₂O → H₂SO₄

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Explanation:

In the formation of acid rain, sulfur dioxide reacts with oxygen and water in the air to form sulfuric acid. The balanced chemical equation is:

SO₂ + 0.5 O₂ + H₂O → H₂SO₄

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The molar mass of H₂SO₄ is 98.08 g/mol. The mass of H₂SO₄ is:

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