18. Select the false statement below:A. Fe has 2 outer electrons, 8 valence electrons, and 18 core electronsB. Fe2 is more paramagnetic (has more unpaired electrons) than Fe3 C. Fe3 is isoelectronic with Mn2 D. none of these ions (Fe2 , Fe3 , Mn2 ) have any electrons in the 4s subshellE. Cu, Ag, and Au all have electron configurations of ns1 nd10

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.