Explain why water has high surface tension.

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Water has high surface tension because its polar molecules form strong hydrogen bonds that pull surface molecules inward.

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Asked 12 days ago|1/8/2026 9:57:08 AM

Updated 12 days ago|1/8/2026 10:21:56 AM

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cruz30

Water has high surface tension because its polar molecules form strong hydrogen bonds that pull surface molecules inward.

Added 12 days ago|1/8/2026 10:21:32 AM

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yumdrea

Water has a high surface tension because of the strong hydrogen bonds between its molecules.

Added 12 days ago|1/8/2026 10:21:56 AM

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Determine the oxidation state of S in H SO .

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Updated 12 days ago|1/8/2026 9:20:51 AM

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cruz30

Given: H2SO4
Assign oxidation states
H = +1
O = -2
Let x = oxidation state of S
2(+1) + x + 4(-2) = 0
Solve for x
2 + x - 8 = 0
x - 6 = 0
x = +6
Answer: The oxidation state of S in H2SO4 is +6

Added 12 days ago|1/8/2026 9:20:51 AM

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Balance: Al + HCl AlCl + H .

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Updated 12 days ago|1/8/2026 9:20:00 AM

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cruz30

Balanced equation:
2 Al + 6 HCl - 2 AlCl3 + 3 H2

Added 12 days ago|1/8/2026 9:20:00 AM

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Calculate the molarity of 10 g NaOH in 500 mL solution.

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Updated 12 days ago|1/8/2026 9:19:17 AM

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cruz30

Mass of NaOH = 10 g
Volume of solution = 500 mL = 0.5 L
Molar mass of NaOH = 40 g/mol
Moles of NaOH = 10 / 40 = 0.25 moles
Molarity = 0.25 / 0.5 = 0.5 M
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Added 12 days ago|1/8/2026 9:19:17 AM

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Identify hybridization of N in NH .

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Updated 12 days ago|1/8/2026 9:18:43 AM

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cruz30

The nitrogen in NH3 is sp3 hybridized.

Added 12 days ago|1/8/2026 9:18:43 AM

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