The molecular structure of water contains two atoms of hydrogen and one atom of oxygen. when water reaches its boiling point and turns into water vapor, what happens to its molecular structure?

a. it remains the same
b. it changes the ratio of atoms
c. it forms bigger molecules
d. it forms lighter molecules

for ! x

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process