Answer: it should be as simple and logical as possible.
Explanation: when producing a scientific theory, one shouldn't introduce stretched realities. For example, if I come back home and find the fridge open, it's very unlikely that a pink elephant came into my house while I was gone and opened it, I must have left it open when I left.
<h2>suspension should be correct
</h2>
<u>a suspension </u>
<em>the particles are big enough to settle </em>
<em>
</em>
<u>a colloid</u>
<em>the particles are too small to ever settle
</em>
<u>a solution
</u>
<em>homogeneous mixture of two or more substances</em>
Explanation:
First, we will calculate the feed rate of alum as follows.

= 228000 g/day
Converting this amount into g/min as follows.

= 158 g/min
Now, the chemical equation will be as follows.


= 0.151 mmol 

= 15.15 mg
/L
For precipitate:


= 7.88 

= 29.9 
4 3 and 5 are wrong:)
4 is true and 5 is false
4. insulators are really thick materials that keep electrons within their space.
For example, a charger the rubber is the insulators and the electrons are flowing inside of the charger so you don't get shocked.
5. without the force of attraction, there are no atoms:)
for number 3, its a trick question
Hope this helped!
(learned these this year so I didn't forget them:)
This is the flow! your answer can be found online