Well the reason why the water valve was because of the force of gravity. Without the force of gravity the water would have flown so if you had to try to move the water up the waterfall you would have to fight the force of gravity
Atomic number is 57, and the atomic mass is 138.90547 u + 0.00007 u
if the product has lesser energy than the reactants it means enthalpy change value is positive.so it is endothermic reaction where the heat is absorbed.so kcl will formation will have positive enthalpy change .
The answer is true, particles in the gaseous state are the furthest apart
Answer:
Atom, Sub atomic particle, compound, molecule
