When a clean iron nail is placed in an aqueous solution of copper (II) sulfate, the nail becomes coated with a brownish-black material. (a). What is the material coating on the iron?(b) What are the oxidizing and reducing agents? (c) Can this reaction be made into a voltaic cell? (d) Write the balanced equation for the reaction. (e) Calculate E∘cell for the process.

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

How many moles of gas are present if p=11 atm, v=12l, t=185k?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.