Find the total positive charge of all the proton in 5gm of water

Number of moles in 5 gm of water is given as

1 mole consist of Avagadro number of molecules of water

so total number of water molecules

now we know that each water molecule will have 10 number of proton in it

so total number of protons in all the molecules is given as

now we know that total charge is given as

so we will have

so above is the charge due to all water molecules

the rearrangement of particles in a physical change. hope this

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.