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2 years ago

Which of the following elements has the highest atomic radius, Sr or Cu

Chemistry

1 answer:

cestrela7 [59]2 years ago

6 0

Answer:

Sr or Strontium

Explanation:

sr: strontium has atomic radius of 255pm

cu: copper has an atomic radius of 128pm

they teach you in chem how to do it based off the chart but I don't remember that method

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What is PO3 compound name?

OleMash [197]

Answer:

PHOSPHITE ION is the correct answer.

Explanation:

Hope this helped Mark BRAINLIEST!!!

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3 years ago

For the following reactions, write a balanced equation using half-reactions and calculate the voltage to be expected.

Iteru [2.4K]

a) $2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

b) $2Ag (s) +2H^(aq)$ → $2 Ag^+ (aq) +H_2(g)$

<h3>What are half-reactions?</h3>

The half-reaction method is a way to balance redox reactions. It involves breaking the overall equation down into an oxidation part and a reduction part.

$2Na(s) +2H_2O(I)$ → $2Na^+(aq) + OH^-(aq)+ H_2(g)$

$E^0 cell = E^0 (reduction) - E^0 (oxidation)$

= $E^0(\frac{H_2O}{H_2}, OH^-) -E^0(Na^+/Na)$

= -0.83 - (-2.71) =1.88V

$2Ag (s) +2H^(aq)$ → $2 Ag^+ (aq) +H_2(g)$

$E^0cell$ = $E^0(H^+/H_2) -E^0(Ag^+/Ag)$

$E^0cell$ =-0. - (0.8) =-0.8V

Learn more about the half-reactions here:

https://brainly.in/question/18053421

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2 years ago

A dead fish has washed up on the beach and is starting to decay. Which compound produces the unpleasant odor from the decaying f

finlep [7]

The correct option in here is the first one: <span>pentane-1,5-diamine. This is also known as cadaverine. This is a common compund that produces that unpleasant odor from the fish. </span>

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3 years ago

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devlian [24]

Answer: Id say C

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