Answer:
a, b
Explanation:
Electrolytes dissociate to make ions, because of it they conduct electricity.
When multiplying numbers, the term with the least significant digits gives how many significant digits will be in the answer. 2.995 has the least with 4 "sig figs", so the answer will have 4 significant digits as well:
2.995/0.16685 = <span>17.9502547198
</span> ↑↑ ↑<span>↑
4 sig figs
So the answer is 17.95.</span>
Answer:
4Fe+ 6H2 O+ 3O2 ----> 4Fe(OH)3
In collecting the precipitate, it is inappropriate to heat <span>the reacted mixture and evaporate off the water because it is possible that the mixture contains other substances that precipitates as well when the mixture is being heated so you will not be able to collect what you want.</span>
In my opinion, the correct answer is the third option. Solution is the mixture that allows a beam of light pass through a liquid in a test tube without scattering.This is because particles are distributed evenly throughout the mixture which allows light to pass directly.
