You are making sweet tea. You add 56g of sugar into 78g if tea. What is the mass percent of sugar ?

In saturated organic compounds, all the bonds between carbon atoms are called?

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

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?