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Paha777 [63]
3 years ago
5

Choose the products that complete the reaction. The chemical equation may not be balanced.

Chemistry
2 answers:
Alina [70]3 years ago
8 0

Al2(SO4)3 + H2

Explanation:

Katena32 [7]3 years ago
3 0

Answer: Al2(SO4)3 + H2

Explanation:

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What does mass change to and what does it do
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Mass is the amount of matter in an object and does not change with location.

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Brown eye color is a dominant trait and blue eye color is a recessive trait.
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A. The person has brown eyes, and the brown eye color remains a dominant trait.

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The dominant trait will always be the one to be show. The recessive trait will be shown if both recessive alleles are inherited.

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Four most common oxyanions of Iodine
nikitadnepr [17]
HIO= Hypoiodous acid; IO-=Hypoiodite
HIO2= Iodous acid; IO2= iodite
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2 years ago
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GUYS PLEASE HELP MEEEE!!! On a hike up a mountain Delilah sees small pieces of rock along the trail, the small pieces look like
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2?

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4 0
3 years ago
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Determine the resulting pH when 75 mL of 0.05M HBr is reacted with 74 mL of 0.075 M KOH
Sunny_sXe [5.5K]

Answer:

pH = 12.08

Explanation:

  • H⁺ + OH⁻ → H₂O

First we <u>calculate how many moles of each substance were added</u>, using <em>the given volume and concentration</em>:

  • HBr ⇒ 0.05 M * 75 mL = 3.75 mmol HBr
  • KOH ⇒ 0.075 M * 74 mL = 5.55 mmol KOH

As HBr is a strong acid, it dissociates completely into H⁺ and Br⁻ species. Conversely, KOH dissociates completely into OH⁻ and K⁺ species.

As there are more OH⁻ moles than H⁺ moles (5.55 vs 3.75), we <u>calculate how many OH⁻ moles remain after the reaction</u>:

  • 5.55 - 3.75 = 1.8 mmoles OH⁻

With that<em> number of moles and the volume of the mixture</em>, we <u>calculate [OH⁻]</u>:

  • [OH⁻] = 1.8 mmol / (75 mL + 74 mL) = 0.0121 M

With [OH⁻], we <u>calculate the pOH</u>:

  • pOH = -log[OH⁻] = 1.92

With the pOH, we <u>calculate the pH</u>:

  • pH = 14 - pOH
  • pH = 12.08
6 0
3 years ago
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