It’s A. 2 Explanation: First step: find out how many grams are in one mole of Na2SO4 Multiply the number of atoms by the mass of the element Na: 2 * 23 = 46 units S: 1 * 32 = 32 units O: 4 * 16 = 64 units Add them all together 142 g/mol Now set up the table
answered: Guest
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:
answered: Guest
c. because step up transformer steps up the input voltage i.e increases the input voltage
the number of turns are greater on the secondary side of step up transformer