What does a decrease in temperature indicate about the molecules in a sample of liquid water? (3 points)
group of answer choices
decreased kinetic energy of the molecules
decreased chemical energy of the molecules
increased chemical energy of the molecules
increased kinetic energy of the molecules

Decreased kinetic energy of the molecules

The first option that is given in the question is the correct option.

Explanation:

The molecules of a substance act differently at different temperatures but we know that its energy is dependent on the temperature at which it is present. The normal tendency of molecules is to vibrate on move around but, when it absorbs a certain amount of heat it gains more energy and tends to move around faster.

And just the other way round happens when heat is lost so we can say with a decrease in temperature the activity of molecules will also decrease and hence the kinetic energy will be decreased.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

c.

explanation: