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WorksheetsWATER
Total questions: 10
Worksheet time: 5mins
Which atoms bond together to create a water molecule?
oxygen and hydrogen
hydrogen and helium
carbon and oxygen
helium and carbon
1. What is the bond that join/attract a water molecule to another water molecules ?
hydrogen bond
covalent bond
disulphide bridge
surface tension
2. Lakes only freeze on the surface because
water has high surface tension
water can act as solvent
water has low viscosity
ice is less dense than water
Identify bond X
Polar covalent bond
Non-polar covalent bond
Hydrogen bond
Peptide bond
How many hydrogen bonds one water molecule form with other water molecules?
1
2
3
4
The molecules of water are able to form hydrogen bonds because,
Hydrogen is more electronegative
The water molecules is shaped like tetrahedron
The bond that hold together the atoms in water molecules are polar covalent bonds
The oxygen atom in a water molecules has a week positive charge
Lakes only freeze on the surface because
water has high surface tension
water can act as solvent
water has low viscosity
ice is less dense than water
When swimming in a lake or on a hot summer day , the water is cooler than the air temperature. The water is cool because...
The specific heat of water is less than air
The latent heat of water is more than air
It requires much more energy to change the temperature of the water than it does to change the temperature of the air
It requires less energy to change the temperature of the water than it does to change the temperature of the air
What determine the cohesiveness of the water molecules?
Ionic bond
Hydrogen bond
Hydrophobic interaction
Non polar covalent bond
what is the angle between the hydrogen atom in a water molecules?
104.5o
90o
104o
94.5o
