Chemistry 1010 Water. Bonding forces - attractive forces outside and between molecules From Yahoo...

Chemistry 1010

Water

Bonding forces - attractive forces outside and between

molecules

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Solid - Strong attractive forces

Liquid - varied attractive forces depending on compound

Gas - No real attractive forces

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Hydrogen Bond

Attraction between molecules that have a Hydrogen connected to a F, O or N

Very strong attractive force – breaks pipes in the winter

Responsible for Surface Tension

HO

H

H O

H

HO

HH O

H

HO

H

-++

++

--

+ +H

OH

Surface Tension

Dipole Force

Attraction due to different electronegativities

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H Cl+ - +-

+-+-+ - +-+-

+ -+ -

Dispersion Force

Produced from temporary dipoles

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Si O Si O+ -

N HHH

..-

++

+

Boiling Point

The temperature at which a

liquids vapor pressure is equal to the atmospheric

pressure

Vapor Pressure

The partial pressure a gas exerts when in equilibrium with a liquid

How Does an Aerosol Can Work?

How Does a Pressure Cooker Work?

Heat and Matter

• Heat is used by matter to either increase its temperature change state

• While changing state, the temperature of a substance remains constant

Heating Curve for Water

How Does Changing States Make Hurricanes Form?

• Ice crystal nucleation starts at the top of the storm where temperature is lowest

• Because the conversion of water to ice gives off energy, it gets warmer at the top

• This heat causes the air to expand which causes wind to rise

• This rising wind increases and intensifies as a hurricane grows

Drawing Organic Molecules

Draw Hexane C6H14

What do all those lines mean anyway????

How Do you Make Soap and How does It work?

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