With what we now know about formal charge, we can start looking at lewis structures we drew earlier. perhaps we didn't always draw them correctly. in the section on resonance, one of the first examples was of the molecule so2 which was suggested to exhibit resonance. does it? draw the resonance structure for so2 and you will notice it has a formal charge of 1, 0, -1 on each of its atoms. can we do better? try redrawing the lewis structure of so2 and feel free to put more than eight electrons on the sulfur. after all, it can use the 3d subshell. can you make a lewis structure in which every atom has a formal charge of 0?

Evaporation: this is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas). water vapour droplets join together to make clouds! condensation: this is when water vapour in the air cools down and turns back into liquid water.

Ithe undersigned only for use your own email and delete any and copies and of the itself and to be there is a good timewhat does a decrease in temperature indicate about the molecules in a sample of liquid water? decreased chemical energy of the moleculesdecreased kinetic energy of the moleculesincreased chemical energy of the moleculesincreased kinetic energy of the moleculeshow does a sample of helium at 15 â°c compare to a sample of helium at 215 k? the helium at 15 â°c has a higher average kinetic energy than the sample at 215 k.the helium at 15 â°c has lower nuclear energy than the sample at 215 k.the helium at 15 â°c has slower-moving atoms than the sample at 215 k.the helium at 15 â°c has smaller atoms than the sample at 215 k.

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