Answer:
Current
Explanation:
An electric fence used to contain cattle works by transmitting energy through a conductor creating an electric current.
An electric fence is usually connected to an electric power source . The connection brings about the flow of electric charges(current) which is aided by the presence of a conductor. The conductor ensures smooth flow of electric current to achieve the main purpose of the fence.
B should be 20 because only 1 oxygen goes into water
C is hydrogen because 2 hydrogens go into each water
Can't read anything beyond c
Answer : The mass of chlorine reacted with the phosphorus is, 53.25 grams.
Explanation :
First we have to calculate the moles of phosphorus.


Now we have to calculate the moles of 
The balanced chemical reaction is:

From the balanced chemical reaction, we conclude that
As, 2 moles of phosphorous react with 3 moles of 
So, 0.5 moles of phosphorous react with
moles of 
Now we have to calculate the mass of 

Molar mass of
= 71 g/mol

Therefore, the mass of chlorine reacted with the phosphorus is, 53.25 grams.
It’s called an isotope which is an atom with the same number of protons but a different number of neutrons