The answer is c because the subject thinks that they will be shocked when then might not
A. Chemical energy can be in many forms including in the chemicals found in food
The anode in a voltaic cell is the source of electrons so it is considered to be negative. The counterpart is the cathode, which is considered to be positive. If you look at the diagram the electron flow goes from A to B. This means that part A is the anode. Part B is the cathode. Part C and D is the electrolyte.
The answer therefore is the first option.
Answer:
Adding HNO2 increases the concentration of HNO2 and shifts the equilibrium to the left, increasing the concentration of NO2− ions and decreasing the concentration of OH− ions. PLEASE GIVE ME BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!! =) Hope this helps!
Given that,
The equation is : 
To find,
The missing coefficients.
Solution,

Let the value of ? is x.
It is the equation of photosynthesis.
In LHS,
Carbon atoms = 6
Hydrogen atom = 12
Oxygen atom = 18
In RHS,
Carbon atoms = 6
Hydrogen atom = 12
Oxygen atom = 6
If we make the equation as 
No the number of atoms in RHS = 6+ 12 = 18
It means if we take the value of ? as 6 the equation will be balanced.
Hence, the correct option is (B) "6".