Homework Answers
Reduction is mainly
(D) addition if electrons
This takes place when the metal reacts with the acid. For eg:
2 H+ + 2 e- = H2 (gas)
Which is due to gaining of 2 electrons by the hydrogen ions.
In order to remember this process we use the abbreviation such as OIL RIG:
Oxidation involves loss of electrons
Reduction involves gain of electrons
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Question 21 (1 point) Saved Paracrine signaling uses what types of cells to allow for fast signaling? O Nerve cells Somatic Cells Epithelial cells O none of these Saved Question 22 (1 point) Endocrine signals are.... Short in duration and more gradual in their effect longer lasting and more gradual in terms of their effects short in duration, and immediate in their effect Longer lasting and immediate in their effect Question 23 (1 point) Paracrine signals are.... Longer lasting and...
Question 5 (1 point) Standard reduction potentials for the Zn2+/Zn and Pb2+/Pb couples are -0.76 and...
Question 5 (1 point) Standard reduction potentials for the Zn2+/Zn and Pb2+/Pb couples are -0.76 and - 0.13 V, respectively. The galvanic cell below uses the half-cells Pb2 Pb and Zn2+Zn, and a salt bridge containing KCl(aq). The voltmeter gives a positive voltage reading. voltater salt bridge CD- The identities of A and C, respectively, are Zn and K OPb and K Zn and CH O Pb and CI Question 6 (1 point) Saved In a working electrochemical cell, the...
please help as soon as possible ergent Question 44 (1 point) What is the standard Gibbs...
please help as soon as possible ergent
Question 44 (1 point) What is the standard Gibbs free energy change for the reaction be 3 Ca2+ + 2 Au 2 AuJ+3 cd % reaction Erea (V) -1.50 Au. 3 Au Cd2+ + 2e-Cd -0.40 +637 kJ +367 kJ 0-637 kJ 0-367 kJ O+1.10 x 10 kg 0-1.10 x 103 kJ none of these Question 43 (1 point) Which of the following statements are FALSE about an electrochemical cell? (Select all that...
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Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular smooth muscle cells. One way to treat high blood pressure is to administer competitive inhibitors that bind to this receptor. The Kd for binding of epinephrine to this receptor is ~UM. Based on the measured affinity (Kd) of the following drugs for the a-adrenergic receptor, which might be good candidates for high blood pressure medication? Drug A: Kd = 0.6 M; Drug B: Kd...
Question 21 (1 point) Saved Paracrine signaling uses what types of cells to allow for fast signaling? O Nerve cells Somatic Cells Epithelial cells O none of these Saved Question 22 (1 point) Endocrine signals are.... Short in duration and more gradual in their effect longer lasting and more gradual in terms of their effects short in duration, and immediate in their effect Longer lasting and immediate in their effect Question 23 (1 point) Paracrine signals are.... Longer lasting and...
Question 5 (1 point) Standard reduction potentials for the Zn2+/Zn and Pb2+/Pb couples are -0.76 and - 0.13 V, respectively. The galvanic cell below uses the half-cells Pb2 Pb and Zn2+Zn, and a salt bridge containing KCl(aq). The voltmeter gives a positive voltage reading. voltater salt bridge CD- The identities of A and C, respectively, are Zn and K OPb and K Zn and CH O Pb and CI Question 6 (1 point) Saved In a working electrochemical cell, the...
please help as soon as possible ergent
Question 44 (1 point) What is the standard Gibbs free energy change for the reaction be 3 Ca2+ + 2 Au 2 AuJ+3 cd % reaction Erea (V) -1.50 Au. 3 Au Cd2+ + 2e-Cd -0.40 +637 kJ +367 kJ 0-637 kJ 0-367 kJ O+1.10 x 10 kg 0-1.10 x 103 kJ none of these Question 43 (1 point) Which of the following statements are FALSE about an electrochemical cell? (Select all that...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular smooth muscle cells. One way to treat high blood pressure is to administer competitive inhibitors that bind to this receptor. The Kd for binding of epinephrine to this receptor is ~UM. Based on the measured affinity (Kd) of the following drugs for the a-adrenergic receptor, which might be good candidates for high blood pressure medication? Drug A: Kd = 0.6 M; Drug B: Kd...
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