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CaHeK987 [17]
3 years ago
14

Which statement about the greenhouse effect is NOT true?

Chemistry
1 answer:
Archy [21]3 years ago
7 0
<span> Greenhouse gases were not historically present in the atmosphere.</span>
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Answer:

2. Option B.

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H₂SO₄ + Ba(OH)₂ → BaSO₄ + 2H₂O

You can count 2H in sulfuric acid and 2 H in the barium hyrdoxide, so the coefficient for water must be 2.

You will have 4 H on both sides of the reaction.

Try with the dissociations of each reactant

Sulfuric acid ⇒ H₂SO₄ →  2H⁺  + SO₄⁻²

Barium hydroxide ⇒ Ba(OH)₂ → Ba²⁺  +  2OH⁻

Sulfate anion bonds to barium cation to produce the salt, therefore the 2 protons will bond the 2 hydroxide in order to produce, 2 moles of H₂O

2H⁺ + 2OH⁻ → 2H₂O

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