Answer:

Explanation:
Hello,
This types of reactions are likely to be carried out in gaseous phase as it is easier to induce reactions, therefore, for us to compute the change in the enthalpy of this reaction we should write the formation enthalpy of gaseous methanol, hydrogen chloride, methyl chloride and water as -205.1, -92.3, -83.68 and -241.8 kJ/mol respectively. Then, the reaction enthalpy for this reaction is:

Which accounts for an exothermic chemical reaction.
Regards.
For the answer to the question above,
If you mean planet, that would be Mercury. There are other objects in our solar system that could fit the criteria.
Our moon, Ganymede, and Callisto are about a quarter the size of Earth and have no atmosphere or moon.
Answer:
0.0222 mol KCl
Explanation:
2 KClO3 (s) 2 KCl (s) + 3 O2 (g)
2.73 g x mol
x g KCl = 2.73 g KClO3 x[ (1 mol KClO3)/ (122.5 g KClO3) ] x [(2 mol KCl)/ (2 mol KClO3)]
x g KCl = 0.0222 mol KCl
Calculation-
400gCuSo4
---------------- ] faction 2.5 over 4 which EQUALS .625MCuSO4 in decimal form
1
The plants without any fertiliser could be the control, to see what the change in the independent variable (fertiliser) does to the growth of the plant (dependant variable).
Hope that helps.