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tamaranim1 [39]
3 years ago
7

The collection of which of the following gases involves a catalyst?

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
8 0

Answer:

Ammonia

Explanation:

I believe that ammonia is the correct answer to this question.

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Autopsies are only performed for a homicide
Ratling [72]
The answer to this question would be: false

Autopsies are performed to the body that didn't die from a natural cause or known disease. This will include homicide or suicide. Some case that suspected to be suicide would be a homicide that was covered by the criminal. In this case, the body is examined for any unnatural or suspicious sign that might be caused by the killer. Autopsy also needed in a malpractice case.
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3 years ago
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In ___ waves combine so that the resulting wave is bigger than the largest of the original waves?
Oksana_A [137]

Answer:

The answer is...

Explanation:

Constructive Interference

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3 years ago
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What is the pH of an acetic acid solution where the concentration of acetic acid is 2 mM and the concentration of sodium acetate
schepotkina [342]

Answer:

pH = 5.76

Explanation:

We can solve this problem by using<em> Henderson-Hasselbach's equation</em>:

pH = pKa + log\frac{[SodiumAcetate]}{[AceticAcid]}

We are already know all the required information, thus we<u> input the data given by the problem</u>:

pH = 4.76 + log(20/2)

And finally <u>calculate the pH</u>:

pH = 5.76

The pH of that acetic acid solution is 5.76.

6 0
3 years ago
What do we need to know to understand the formation of a chemical bond?​
Klio2033 [76]

Answer:

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.

Explanation:

You have to put energy into a molecule to break its chemical bonds. The amount needed is called the bond energy. After all, molecules don't spontaneously break

5 0
3 years ago
Given that blood exerts the same osmotic pressure as a 0.15 M NaCl solution, which solution could be the hypertonic solution?/se
inna [77]

Answer:

a. 0.68 M NaCl solution

Explanation:

The tonicity of a solution can either be hypotonic, hypertonic and isotonic. Hypertonic solution is a solution which possesses a higher concentration of solute in relation to another solution.

According to this question, a solution is said to contain 0.15 M NaCl solute. This means that a solution that will be hypertonic to this solution will have a much more concentration of solute, which based on the options provided is the 0.68 M NaCl solution.

5 0
3 years ago
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