Structure of Water
Properties of Water
Bonding
Atomic Structure
Misc
Systems
100
the chemical structure of water
H2O
100
Allows water striders to walk on water
surface tension
100
it takes a large amount of energy to raise or lower the temperature of water
high heat capacity
100
Three subatomic particles
Protons, neutrons, and electrons
100
Water can dissolve many substances because of this characteristic?
polar molecule
100
A system wherein matter and energy are exchanged with the environment
Open system
200
How many hydrogen atoms are in a water molecule?
There are 2
200
What allows water to dissolve many substances?
Universal solvent
200
it takes a lot of energy to make liquid water vaporize
high heat of vaporization
200
Located outside of the nucleus and have a negative charge.
Electrons
200
According to the laws of physics, water should be a gas at room temperature T/F
True
200
A system wherein energy is exchanged with the environment but matter is not
Closed system
300
What is a molecule that has "electrically" charged areas?
Polar molecule
300
Water rising in a tube is an example of what property?
Capillary action
300
Water is less dense as a solid than a liquid
True
300
Located inside of the nucleus and have a positive charge.
Protons
300
A substance that dissolves another substance
A solvent
300
A system wherein neither matter nor energy are exchanged with the environment
Isolated system
400
When molecules are attracted to other molecules of the same substance
Cohesion: a force of attraction between the same kind of molecules
400
Why do water molecules stick to one another?
hydrogen bonding
or
polar molecule
400
What is a weak bond formed between water molecules?
A hydrogen bond
400
The sum of the protons and neutrons
Atomic Mass
400
How many protons are in an atom of this element? What is the atomic mass of this element?
107 protons
264 amu
400
A sealed cooler is what type of system?
Isolated system
500
When molecules are attracted to other molecules of a different substance
adhesion: a force of attraction between different kinds of molecules
500
If water will not dissolve a particular substance, what type of substance is it?
Non-polar
500
This property of water allows it to dissolve all polar and ionic substances
Universal solvent
or
Hydrogen bonds
500
The number of protons in an atom of a certain element.
Atomic Number
500
An atom has an atomic number of 50 and atomic mass of 150. How many neutrons does it contain?
150 (atomic mass) - 50 (atomic #)= 100 neutrons
500
The planet Earth is what kind of system?
Open system