I think the correct answers from the choices listed above are the first, third and the last option. Ionic compounds are compounds that dissociates into ions when in aqueous solution. From the list, NH4Cl, KF and MgO are the ionic compounds. Hope this answers the question.
I've put in some of the answers.
hope this helps :)
Gay Lussac's Law
Convert:
200°C = 200 + 273 = 473 K
50°C = 50 + 273 = 323 K
Input the value:
Explanation:
The speed of molecules increases when temperature is increased as it will result in more number of collisions between the molecules. Thus, there will be increase in kinetic energy of molecules and increase in the speed of solvent molecules.
Whereas on decreasing the temperature, the kinetic energy of molecules will decrease. This will result in less number of collisions between the molecules. Therefore, the speed of solvent molecules will slow down.
The differing heart rates is the dependent variable. This is because it is dependent on the exercise that will depict the heart rate
