С1
end-of-chapter test
chapter 4 higher
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11 amra made up a 100 cm solution of hydrochloric acid and calculated how many acid
particles were in it. she then divided the solution equally into two clean beakers and
used water to make each beaker up to 100 cm.
explain what has happened to the concentration of the solution amra first made.
(3 marks)

i think it's c. i'm not sure but i think so.

explanation:

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.