are water molecules polar or non-polar?
polar
what bonds are formed between water molecules as a result of being polar?
hydrogen
why is water described as a solvent?
because it readily dissolves ions and polar molecules
what is cohesion?
cohesion is the force of attraction between water molecules that means they stick to each other.
what atom is positively charged in water?
hydrogen
what atom is negatively charged in water?
oxygen
how does the polarity of water cause cohesion?
cohesion occurs when the positively charged hydrogen atom is attracted to the negatively charged oxygen atom, causing a hydrogen bond to form between the two.
why is water described as a coolant?
because water can provide a cooling effect through evaporation.
why is water described as a buffer for changes in temperature?
because water has a high specific heat capacity, so a lot of energy is required for it to change temperature.
is ice less dense or more dense than liquid water?
less dense
how can water act as a habitat for organisms?
it has surface tension