I think the answer is three but i can't be sure.
A balanced chemical reaction equation is one in which the number of atoms of each of the atoms are the same on both sides of the reaction equation.
<h3>Balanced reaction equation</h3>
A balanced reaction equation is a type of reaction equation in which the number of atoms of each reactant on both sides of the reaction equation are the same.
Let us now try to balance each reaction;
- 2H2 + O2 ----> 2H2O
- S8 + 12O2 -------> 8SO3
- 2HgO ----> 2Hg + O2
- Zn + 2HCl ------> ZnCl2 + H2
Hence a balanced chemical reaction equation is one in which the number of atoms of each of the atoms are the same on both sides of the reaction equation.
Learn more about balancing reaction equations: brainly.com/question/7358082
Answer:
A = 8
B = 8
C = Oxygen (O)
D = 26
E = 30
F = Iron (Fe)
Explanation:
protons neutrons atomic number mass number element
A 7 B 15 C
D E 26 56 F
mass number = protons + neutrons
E = 56 - 26 = 30
A = 15 - 7 = 8
protons = atomic number
B = 8
D = 26
From atomic number:
C = Oxygen (O)
F = Iron (Fe)
