1) loses energy when it condenses to form liquid.

2) Ionic compounds have positive negative charges unlike molecules

3) -1

As the liquid condenses, the particles (by definition) move slower. The energy of motion that they lose when they slow down is given off as heat. That heat is transferred somewhere else. Think of a glass of ice water on a humid day. Moisture will condense on the outside – that’s from water vapor. As the water molecules condense on the glass, they transfer their heat loss to the water in the glass. Eventually, the water in the glass warms up to ambient temperature, and condensation ends.

Molecular compounds are formed by atoms with approximately equal electronegativities (tendency to attract electrons) sharing electrons more or less equally between them. They share in order to have filled valence shells. Ionic compounds are formed when atoms with unequal electronegativities transfer electrons. The atoms are then bound together by the attraction between their different ionic charges.

Fluorine generally forms a -1 ion.

Well, first Thermal means heat, so thermal energy is energy lost to heat. When a gas condenses to form a liquid the gas looses energy, one would have to add energy to change a liquid to a gas. So, as the gas ‘cools’, it looses thermal energy and condenses to form the liquid. The thermal energy is actually lost to the surrounding environment. For example if a cloud of steam inside a bag were to condense, the bag would heat up a little form the energy transfer from the steam to the bag and the air on the outside of the bag would heat a bit too. Sorry… kind of a long winded answer.

I’ll leave the rest for others…

Raj is right. Nothing to add, only that you should read your text book and listen to the teacher in class. The answers must have been given then & in there. If you always try short cut in life you’re heading for big disapointments.

Sorry if I’m talking like your father but I may very well be.

i don’t know the answers, but if you post this question in Science & Maths, Chemistry and Physics you’d stand a better chance of getting a good (& quick) answer.

sweety

its your homework

y u want us to study……….