Which one is the oxidizing agent in the reaction, Mg(s) + Cu(NO3)2(aq) -> Mg(NO3)2(aq) + Cu(s) ? а. Mg
b. Cu(NO3)2
c. Mg(NO3)2
d. Cu(s)

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg