It's A
a. the electron configuration of a noble gas.
Answer:
d.
Explanation:
i was think b at first but that doesnt really explain how it gets to the circulatory system so d because without the the regulation of the heart rate and oxgen rich blood the muscular system can do absolutely nothing
Answer:
See below explanation
Explanation:
Checking the reduction potencials:
Zn⁺²/Zn° , E° = -0.76 V
Fe⁺²/Fe° , E° = -0.44 V
For which Fe⁺² will be the ion that will reduce, and Zn° will lose electrons
ANODE: Zn° ⇄ Zn⁺² + 2e⁻
CATODE: Fe⁺² + 2e⁻ ⇄ Fe°
NET CELL REACTION: FeSO₄ (ac) + Zn° ⇄ Fe° + ZnSO₄ (ac)
In the external circuit, electrons will migrate from anode (Zn|Zn⁺²) to catode (Fe|Fe⁺²), and in the salt bridge; anions migrate from Fe⁺²|Fe compartment to Zn|Zn⁺² compartment
A covalent bond is a bond between 2 non metals, they share electrons. Ionic bonding occurs between a metal and a non-metal, and they transfer electrons.
Answer:
<em>lithosphere</em><em> </em><em>(land)</em>
<em>hydrosphere (water)</em>
<em>biosphere</em><em> </em><em>(living things)</em>
<em>atmosphere (air).</em>
