Consider this equation: 2 KMnO4(aq) + Cl2(g) → 2 KMnO4(s) + 2 KCl(aq)
1. How many liters of Cl2 is needed to produce 75.0 grams of KMnO4 at STP?

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

b) mutualism

hope this : )

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.