When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises.
When a sodium atom transfers an electron to a chlorine atom, forming a sodium cation (Na+) and a chloride anion (Cl-), both ions have complete valence shells, and are energetically more stable. The reaction is extremely exothermic, producing a bright yellow light and a great deal of heat energy.
Answer:
0.1667
Explanation:
Hello,
Dalton's law defines:

A total pressure is:

So, for A (solving for
in the previous equation, we get:

Since
, we obtain:
}
Best regards.