Answer:
To design a good scientific research, there is a few things you need. You need to have an experiment first of course . You need an hypothesis, a conclusion, and research. Question,analysis, and observation.
Explanation:
If this helps : In fifth grade we did a scientific experiment that we had to present. I chose to do if bananas turned bad first under UV light or sun rays and my hypothesis was that they would turn bad under the sun-rays. My conclusion was that they didn't. My observation was written down in a notebook of what I saw with each passing day. Research was what I looked up about of course how long bananas lasted and how long they didn't.
Hope it helps :)
Hello, 3Coli Here!
Your Answer is Here:
I would recheck, redo, and revise my answers, if necessary. Also, I can look at the lesson again, if I forgot something. So that's what I would do.
Hopefully, this helps!
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The ammonium iodide solution is converted into a buffer by the addition of ammonia (NH₃).
<h3>What is a buffer solution?</h3>
- A solution which is formed by the addition of weak acid and its conjugate base or weak base and its conjugate acid.
- They resist a change in pH of the solution when an acid or alkali added to them.
<h3>Which is to be added to the given solution to convert it into a buffer?</h3>
The given solution contains 0.21 M ammonium iodide (NH₄I). This is a salt of a weak base(NH₃) and a strong acid(HI).
NH₄I(s) → NH₃(g) + HI(g)
Where the salt is ionic. So, in aqueous solution it dissociates into NH₄⁺ and I⁻
The ammonium ion NH₄⁺ is the conjugate acid of the weak base NH₃.
So, the mixture of this weak base NH₃ and its conjugate acid NH₄⁺ converts the solution into a buffer.
Therefore, one liter of the given solution could be converted into a buffer by the addition of a weak base NH₃.
Learn more about buffer solution here:
brainly.com/question/15075487
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I'm pretty sure it's C.
A gas can be compressed, but I'm not sure that it actually takes the shape.