The answer is option D
That is when an electric current is passed through liquid water, hydrogen gas accumulates at one electrode and oxygen gas accumulates at the other, a chemical change has occurred with energy being absorbed.
This process is called electrolysis of water in which hydrogen gas accumulates at one electrode and oxygen gas accumulates at the other. In it decomposition of water occurs chemically using electricity as the energy source.
The equation is x/25=3.2
*25 *25
-------------
x=80g
Explanation:
Specific heat capacity of gold (S)
= 0.126 J /kg°C
mass (m) = 350 g = 0.35 kg
difference in temperature (dt)
= 88.5°C - 24.6°C
= 63.9° C
Now
Energy released (Q)
= m*s*dt
= 0.35 * 0.126 * 63.9
= 2.81799 Joule
Hope it will help :)
Two is wrong the rest are right
Answer:
Peptide Bonds
Explanation:
Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.