Los hidróxidos son compuestos constituidos por un metal, oxigeno e hidrogeno; dos de estos elementos forman un enlace covalente formando así un ion aniónico de tal manera que permite completar la ley del octeto en su acompañante. De acuerdo a esto complete los siguientes compuestos: A). Bi 2O5 + H2O →……………. B). SO2 + H2O →……………….

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

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?

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?