A zinc-copper battery is constructed as follows. Zn | Zn2 (0.65 M) || Cu2 (2.20 M) | Cu The mass of each electrode is 200. g. (a) Calculate the cell potential when this battery is first connected. WebAssign will check your answer for the correct number of significant figures. V (b) Calculate the cell potential after 10.0 A of current has flowed for 10.0 h. (Assume each half-cell contains 1.00 L of solution). WebAssign will check your answer for the correct number of significant figures. V (c) Calculate the mass of each electrode after 10.0 h. mass of zinc electrode WebAssign will check your answer for the correct number of significant figures. g mass of copper electrode WebAssign will check your answer for the correct number of significant figures. g (d) How long can this battery deliver a current of 10.0 A before it goes dead

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

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when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

bcde is the incorrect answer it is a