Answer:
D. Sulfur
Explanation:
Electrons are filled in shells. Oxygen has a total of 8 electrons while sulfur has a total of 16 electrons. Out of the total eight electrons, the first shell has two electrons while six electrons are filled in the “s and p” orbits of the second shell giving the outer shell a configuration of "2s2, 2p4".
Likewise, out of the total 16 electrons of sulfur, the last 6 electrons are filled in "s" and "p" orbits of the third shell. Sulfur has a total of six electrons in its outer most shell "3s² 3p⁴". Since the electrons present in the outer most shell are available for chemical reactions and determine the chemical nature of the atom, oxygen and sulfur should exhibit the same chemical properties.
Answer:
C. The concentrations of products and reactants are equal.
Explanation:
A reaction has reached equilibrium when the concentrations of products and reactants are equal.
Carbon dioxide
released from tissue dissolve in the blood plasma to form carbonic acid.It is the best buffer system since it partially
dissociates to hydrogen and bicarbonate
ions (conjugate base). The amount of H+
ions directly influence the pH. Therefore,
the forwards and reverse reactions (catalyzed by carbonic anhydrase enzyme) influence
the pH homoeostasis of the body.
<span>Unsustainable versus Sustainable Living. ... We cannot live sustainably without a healthy en- vironment, but our unsustainable lifestyles are causing environmental degradation, making it more difficult to live sustainably. Humanity's enormous environmental impact is causing a global crisis.</span>
<span>Transmitted via neurotransmitters. There is a gap between two neurons. This place where the axon meets with dendrite is callde synapse. Neurotransmitters which are chemicals help transmit the signals from axon to dentrite. Calcium ions play major role in this process.</span>
