Answer:
The first ionization energy for K is less than Ca because Ca has a larger effective nuclear charge.
Quick answer: Exothermic reactions mean that heat has escaped the system. The answer is A. Heat is released.
Answer:
Plants add water to the atmosphere
Explanation:
Answer: A hydrogen bonding is interaction between lone pair and hydrogen atom. An Ion-Dipole interaction is the interaction between an ion formed and a dipole. Dipole forms because of the electronegativity difference between two atom participating in the bond formation, and an ion is formed when an atom gains or lose electron. This ion-dipole interaction is strongest interaction.
Therefore, The right choice is (B)
Answer:
melting, freezing, sublimation, deposition, condensation, and vaporization. These changes
Explanation:
hope it helps...i dont know if its right but i hope it helps
