Will mark brainliest 4 A solution which has a pH of 11:
A is more alkaline than a solution with a pH of 12.

B is less alkaline than a solution with a pH of 9

C is more acidic than water

D is less alkaline than a sodium hydroxide solution of the same concentration.​

D

Explanation:

A, B and C are incorrect since the greater the pH value, the more alkaline a solution is, and the pH of water is 7.

In the statement D, the pH of NaOH solution is 13 usually, so the given solution is less alkaline than NaOH solution, and I think of the same concentration is somewhat unnecessary.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.