Properties of Water
Drops of water form droplets due to
cohesion
The term polar means the molecule is
charged (partially charged)
These bonds are the result of sharing of electrons
covalent
What are the name and charge of the 3 subatomic particles found in an atom?
Proton, +
Neutron, 0
Electron, -
Trees get water through its body by this action.
capillary
A water molecule is bonded together by this bond. (Be specific)
polar covalent bond
Ionic bonds are created between 2 charged atoms, called
ions
How is an element different than a compound?
An element is one type of atom & compound is different elements bonded together
Why is water less dense as a solid than a liquid?
The hydrogen bonds are able to have more of an impact on arrangement once the molecules slow down, cause the atoms to be spaced farther apart.
Polar molecules can dissolve other molecules because they are excellent
solvents
Polar molecules are created because of _________ __________ of ___________ (3 words)
unequal sharing of electrons
What is the name given to atoms that are bonded together with a covalent bond.
molecule
In the summer, a large lake will help regulate temperature during the day by _______________ the air. This happens due to water's large _________ capacity.
cooling; heat
Polar molecules are not attracted to
nonpolar molecules
List the order of strength of bonds from strongest to weakest in organisms.
covalent, ionic, van der Waals (hydrogen bonds)
How are isotopes different from each other?
They have different number of neutron.
Why don't water and oil mix?
Water is polar and oil is nonpolar, so they are not attracted to each other but repelled.
Water's polarity results in what partial charges for oxygen and hydrogen?
O = -
H = +
Many of water's properties are the result of its attraction to itself. This attraction creates ______
hydrogen bonds (van der Waal forces)
What type of isotope is used in scientific research?
radioactive