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djyliett [7]
3 years ago
10

Adding luminol to water creates a physical or chemical change ​

Chemistry
2 answers:
faust18 [17]3 years ago
7 0
Answer: chemical

not 100% sure
xeze [42]3 years ago
3 0
Chemical the room also needs to be dark
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Calculate the final molarity of HCl the resulting solution when 5.56 mL of 4.108 M HCl is added to 4.44 mL of water.
puteri [66]

The final molarity of HCl is 2.284 M

We'll begin by listing what was given from the question. This is shown below:

Initial volume (V₁) = 5.56 mL

Initial Molarity (M₁) = 4.108 M

Final volume (V₂) = 5.56 + 4.44 = 10 mL

<h3>Final Molarity (M₂) =? </h3>

The final molarity of the HCl solution can be obtained by using the dilution formula as illustrated below:

<h3>M₁V₁ = M₂V₂</h3>

4.108 × 5.56 = M₂ × 10

22.84048 = M₂ × 10

Divide both side by 10

M₂ = 22.84048 / 10

<h3>M₂ = 2.284 M</h3>

Therefore, final molarity of the HCl solution is 2.284 M.

Learn more: brainly.com/question/6103588

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2 years ago
What does the word "kinetic" indicate about
Natasha2012 [34]
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3. How many atoms of hydrogen do 3.575 mol of hydrogen sulfide contain?
Ksju [112]

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4.3043x10^24

Explanation:

Atoms(H) = (3.575 mol H2S/1)(2 mol H/1mol H2S)(6.02x10^23/1molH)

Simple stoicheometry problem. Sorry for taking so long, took Chem sophomore year, its been a while

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Electrical energy can be transformed into other types of energy. We often experience this transformation of energy in our everyd
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If an element gains an electron, will it form a positive ion or a negative ion?
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