False I think because they don't use balloons to check the weather
Answer:Not so good, but I'll manage. What about you?
Explanation:
Dissolving NH4Cl in H2O is an endothermic solution process. You measure how much it cools the solution by the temperature of the H2O.
<span>q = mass H2O x specific heat H2O x (Tfinal-Tinitial) </span>
<span>The q you measure is for 3.2g/53.4g or q/0.0599 mol. You want to convert that to q/1 mol. </span>
Equilibrium is where two conditions are in state of equilibrium. There is no change in the condition of a system
the equilibrium could be
a) static
b) dynamic
In case of chemical reaction we reach a dynamic equilibrium as the two side reactions are still going on however the rate of forward reaction becomes equal to rate of backward direction.
Thus it is in dynamic equilibrium
in physical changes it happen that the one phase get converted to other phase and with the same rate the second phase is being converted to firs phase
thus answer is
chemical and physical changes
