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Worksheetswater
Total questions: 10
Worksheet time: 6mins
What are the properties of water ?
universal solvent
has high specific heat capacity
has high latent heat vaporization
has minimum density at 4°C
What is the shape of one water molecule?
V shape with angle 104.5°
Y shape with angle 104.5°
V shape with angle 90°
Y shape with angle 90°
Why does water molecule has opposite charges on opposite ends ?
Due to unequal distribution of shared electrons
Due to same distribution of shared electrons
Due to different hydrogen placement
Due to electronegativity in the surrounding
How many hydrogen bond formed with one water molecule
1
2
3
4
Define cohesion
force of attraction between the water molecules
the hydrogen bonding between water molecules
hydrogen bond to the molecules of the cell walls helps counter the downward pull of gravity
A chemical bond that formed when the partially positive H of one molecule is attractive to the partially negative oxygen in another water molecule
What happen to water molecule at 0°C ?
water molecule crystallize
the water molecule become locked into crystalline lattice , each water molecule hydrogen bonded to four partner
what is the bond between hydrogen and oxygen ?
ionic bond
hydrogen bond
covalent bond
Choice the correct statement
large amount of heat energy is absorbed to break ALL hydrogen bond between water molecules in order to increase the temperature of water molecules
larger amount of heat is absorbed to form ALL hydrogen bond between water molecules in order to increase temperature of water molecules
large amounts of heat energy is released to form hydrogen bond between water molecules in order to decrease the temperature of water molecules
Fill in the box with the correct answer
H+
H-
O+
O-
Why is water important as a universal solvent
is a major transport medium in living organism
stabilises solutions to prevent breaking of molecules
supplies an aqueous medium in biochemical reactions
various types of substance can be dissolved
