Asample of water is being heated over a flame. what happens to the water as it is heated?

select one:
a. the volume of the water decreases.
b. the water undergoes an endothermic reaction.
c. the kinetic energy of the water molecules increases.
d. the velocity of the water molecules begins to decrease.

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o

State one important difference between a physical change and a chemical change?