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sergiy2304 [10]
3 years ago
11

Can you test a hypothesis that hummingbirds spend most of their waking hours feeding

Chemistry
1 answer:
Vitek1552 [10]3 years ago
6 0
Yes you can. in order to do this however, you would need to observe the hummingbird and study it closely
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H2SO4 is added to a large beaker of water. How is the solution different from the original water?
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Answer is: A) The solution turns blue litmus to red.

Sulfuric acid (H₂SO₄) is a strong acid, it means that the solution of sufuric acid is more acidic (pH<7) than water (pH = 7).

Chemical dissociation of sulfuric acid in water:  

H₂SO₄(aq) → 2H⁺(aq) + SO₄²⁻(aq).

When solution turns phenolphthalein pink, it means it is basic (pH>7).

Sulfuric acid has more hydrogen ions (H⁺) and less hydroxide ions (OH⁻) than water.

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