The arrows in the chart below represent phase transitions. which arrows represent the phase transitions in which heat energy is gained? a. 1, 2, 3 b. 2, 3, 5 c. 3, 4, 5 d. 4, 5, 6

Option (A) is the correct answer.

Explanation:

Heat energy gained means the molecules have gained kinetic energy because kinetic energy is directly proportional to temperature.

More is the increase in temperature more will be the kinetic energy of molecules.

For example, when solid converts into liquid then it means solid substance has absorbed heat. Similarly, when liquid changes to gas or solid directly changes into gas then heat is absorbed due to which increase in kinetic energy has favored the phase change.

Thus, we can conclude that arrows 1, 2, 3 represent the phase transitions in which heat energy is gained.

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

po-215 i got it right on the quiz