Answer:
Element
Explanation:
Because elements can be made with only one atom the rest of the answers cant be
Answer:
c turns back when iodine is added result indicated a chemical reaction
Answer and Explanation:
a. The equation of K of this reaction is shown below:-
3 A + 5 B + 4 C↔5 D + 7 E + F

b. The moles of compound F is shown below:-
3 A + 5 B + 4 C↔5 D + 7 E + F
2 moles
Now, the mole of produced is

Now, we will the value of c by using the above equation

After solving the above equation we will get
0.5 moles
Oxygen is a non metal
Oxygen, carbon, sulfur and chlorine are examples of non-metal elements.