<em>9. A</em>
<em>10. B</em>
<em>11. B</em>
<em>12. C</em>
<em>13. D</em>
<em>14. C
</em>
I hope this helped! (:
Answer:
A
Explanation:
Got a calculation of 8.05297
There is no diagram attached but there are some ways by which you can find it too easily by yourself
Usually energy diagram uses ∆H .
So
- If ∆H is +ve means reaction is exothermic and energy is released
- If ∆H is -ve means reaction is endothermic and energy is absorbed
So observe∆H whether it. is decreasing or increasing ,
- If increasing then energy is being released and vice versa
Zirconium cannot be broken down by a chemical change, because it is an element. The others are all molecules.
