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tresset_1 [31]
2 years ago
9

Plz help me!! Let it be a good amount of presentation.

Chemistry
1 answer:
Svetllana [295]2 years ago
5 0

Answer:

Read the article on Mine Tools called "Active Listening"

Explanation:

Ive used it before for assignments. Its pretty informative and only takes like 10 minutes to read

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Imperial shrimp attach themselves to sea cucumbers for transportation. The interaction saves energy and improves food availabili
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Answer:

a

Explanation:

commensalism

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3 years ago
What is the specific name for the rock formed when magma cools
Irina-Kira [14]
Igneous Rocks are formed from the cooling of magma or lava.
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3 years ago
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A solution of acetic acid has an equilibrium pH of 2.54 (pKa = 4.75). What was the original concentration of acetic acid?
andrezito [222]

Answer:

i cant under stand what you are trying to say

Explanation:

3 0
3 years ago
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An aqueous solution contains 0.23 M potassium hypochlorite.
Arturiano [62]

Answer:

0.22 mol HClO, 0.11mol HBr.

0.25mol NH₄Cl, 0.12 mol HCl

Explanation:

A buffer is defined as a mixture in solution between weak acid and its conjugate base or vice versa.

Potassium hypochlorite (KClO) could be seen as conjugate base of HClO (Weak acid). That means the addition of <em>0.22 mol HClO  </em>will convert the solution in a buffer. HBr reacts with KClO producing HClO, thus, <em>0.11mol HBr</em> will, also, convert the solution in a buffer. 0.23 mol HBr will react completely with KClO and in the solution you will have only HClO, no a buffering system.

Ammonia (NH₃) is a weak base and its conjugate base is NH₄⁺. That means the addition of <em>0.25mol NH₄Cl</em> will convert the solution in a buffer. Also, NH₃ reacts with HCl producing NH₄⁺. Thus, addition of<em> 0.12 mol HCl</em>  will produce NH₄⁺. 0.25mol HCl consume all NH₃.

5 0
3 years ago
Why is it not recommended to use red, yellow or blue in the chromatography lab? Explain your reasoning in at least two sentences
bazaltina [42]

Answer:

solvent (such as water, oil or isopropyl alcohol) is allowed to absorb up the paper strip. ... Different molecules run up the paper at different rates. As a result, components of the solution separate and, in this case, become visible as strips of color on the chromatography paper.

Explanation:

Hope this helps leave a heart c:

3 0
3 years ago
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