Answer:
3
Explanation:
You need to remember that to measure the number of unparied electrons in an atom you need to undestard its electron configuration, and the electron configuration of phosphorus is 1s2 2s2 2p6 3s2 3p3, just the last state "3p3" have unpaired electron, and because a p state can fits 6 electrons, and here are only 3, that means that those 3 are unpaired.
Answer:- cell potential = -0.19 volts
Solution:- The equation that shows the connection between 
and cell potential, E is written as:
in this equation, n stands for moles of electrons, E stands for cell potential and F stands for faraday constant and it's value is 
.
It asks to calculate the value of E, so let's rearrange the equation:
Let's plug in the values in it:
since, 
Where C stands for coulombs and V stands for volts.
So, 
E = -0.19 V
So, the cell potential is -0.19 volts.
Answer:
Chemical change
Step-by-step explanation:
A change in colour indicates that a new substance with different properties (colour) has been formed. This is a chemical change.
A. is <em>wrong</em>. A physical change does not usually cause a change in colour.
B. is <em>wrong</em>. No new gas or solid was formed,
C. is <em>wrong</em>. There is a colour change, not a temperature change.
Answer:
It has a thick atmosphere which causes extremely high temperatures.
Explanation:
Should be 27300 milligrams
