When determining the mass of product used or reactant consumed, the number of moles must be determined before comparing two substances because Question 10 options: A) atoms have the same mass but moles are different for each substance. B) masses are the same for different substances. C) different substances have different masses due to their atomic make-up. D) moles react.

a non redox reaction occurs when there is not a transfer of electrons. for redox reactions, which are reduction-oxidation reactions, a change in the oxidation number occurs. elements that are reduced gain electrons, and elements that are oxidized lose electrons.

explanation:

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este