<span>the reaction is endothermic
</span><span>the δh is positive</span>
Explanation:
Sand and iron fillings have the same size of particles.
It would be difficult to use a mesh to separate them. Also, sometimes , the iron filing clings well to the surface of the sand particles.
The best way to separate them is to use a bar magnet. The magnetic properties of the iron fillings will get it attracted to the bar magnet leaving the sand particles behind.
learn more:
Extraction brainly.com/question/5881840
#learnwithBrainly
Its arbitrary. It was developed on the greek phoenetic system and never reallybwas explained.
Answer:
mitosis is Exampel of cell divison
Explanation:
mitosis is the second stage of cell divison or somatic cell divison
