Firearms can be divided into two categories: and

The black silver sulfide discoloration of silverware can be removed by heating the silver article in a sodium carbonate solution in an aluminum pan. a. Write down the two half-reactions for this cell. (4 marks)Anode:Cathode: b. What is the cell potential, E°{“version”:”1.1″,”math”:”E°”}? (2 marks) c. If the standard reduction potential for Al3+ is -1.66 V, calculate the reduction potential for the half-cell reaction (2 marks) Ag2S(s) + 2e- → 2Ag(s) + S2-(aq){“version”:”1.1″,”math”:”Ag2S(s) + 2e- → 2Ag(s) + S2-(aq)”} d. Why is a sodium carbonate solution needed? Would a sodium chloride solution work just as well? (2 marks)

Why do the two forms of hemoglobin have different colors?

Estimate the equilibrium constant at 298 K for the equilibrium HbO2 + CO ⇌ HbCO + O2{“version”:”1.1″,”math”:”HbO2 + CO ⇌ HbCO + O2″}

A patient is hospitalized for suicidal ideation after two suicide attempts. For the first 2 days of hospitalization, the patient eats 15% of meals and stays in her room between groups. By the fourth day, the nurse observes that the patient is more sociable, is eating meals, and has a bright affect.  Considering patient’s behavior on the fourth day of hospitalization, which factor should the nurse consider?

A patient is comatose after ingesting six codeine tablets. The patient’s friend says, “Often my friend drinks along with taking more of the drug than is prescribed.” Use of alcohol with this drug:

Which laboratory findings would you expect to see for the client with a long history of alcohol dependence?

A patient with anorexia nervosa is resistant to weight gain. What is the rationale for establishing a contract with the patient to participate in measures to produce a specified weekly weight gain?

In each case shown, a point charge +q is a distance d from the closest point of an uncharged metal sphere. The sphere in Case B has a larger diameter than the sphere in Case A. Three students are comparing the two cases. Which student is correct? 

The hybridization of the electron orbitals of the central atom in IOCl3 molecule is