Predict the products of the following reaction

cacl2 (aq) + k2co3 (aq) →

The product are and

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

The law of conservation of mass states that the mass will remain conserved, thus the number of atoms on product side will be equal to the number of atoms on reactant side.

Thus products are 2 moles of and  1 mole of

the answer would be a

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.