el peso atomico de la sustancia es 210 uma y que su composición porcentual es de 33.18% Na, 36.04% As y el resto es oxígeno (O). Determine la fórmula molecular de la sustancia. Na masa atomica 22.89 g/ mol uma, As arsenico masa ATOMICA 74.92 g/mol y oxigeno 15.99 g/mol uma *
Answers: 1
Chemistry, 21.06.2019 16:00
Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change. when the temperature in a room increases from 25°c to 33°c, changes from a solid to a liquid. in a lab, methane and nitrogen are cooled from -170°c to -200°c. the methane freezes and the nitrogen . when gold is heated to 2,856°c it changes from a liquid to a .
Answers: 2
Chemistry, 22.06.2019 01:30
100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
Answers: 1
Chemistry, 22.06.2019 19:50
What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m
Answers: 2
el peso atomico de la sustancia es 210 uma y que su composición porcentual es de 33.18% Na, 36.04% A...
Mathematics, 18.12.2020 20:50
Physics, 18.12.2020 20:50
History, 18.12.2020 20:50
Physics, 18.12.2020 20:50
History, 18.12.2020 20:50
Biology, 18.12.2020 20:50
Mathematics, 18.12.2020 20:50
Social Studies, 18.12.2020 20:50
Mathematics, 18.12.2020 20:50
Mathematics, 18.12.2020 20:50