18 valance electrons, Hope this helps!
Well countries near the quitter of warmer than countries than the poles. So the mystery island would probably be near the equator near Florida or in Florida
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is 
Explanation:
From the question we are told that
The voltage of the cell is 
Generally 
is mathematically represented as
Where 
is the equilibrium constant for this auto-ionization of water with a value 
Generally the 
is mathematically represented as
=> 
=> 
This is mathematically represented as
Where n is the number of moles which in this question is n = 1
So
=> 
So
=> 
=>
Answer:
There is a basic difference, because mass is the actual amount of material contained in a body and is measured in kg, gm, etc. Whereas weight is the force exerted by the gravity on that object mg. Note that mass is independent of everything but weight is different on the earth, moon, etc.
C. KOH + HBr → KBr + H₂O
Explanation:
The two equations above illustrates the conservation of matter. The law of conservation of matters states that
"in a chemical reaction, matter is neither created nor destroyed but transformed from one form to another".
By this law, we understand that the amount of a particular matter we are starting with should be the one we end with.
KOH + HBr → KBr + H₂O
Conserving Product Reactants
K 1 1
O 1 1
H 2 2
We can see that the amount on both sides are the same.
Learn more:
Conservation of matter brainly.com/question/2190120
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