540 nm is the answer ! can you help me out please ? it is a science question add me and message me :)
Answer:
D. 4, 3, 2.
Explanation:
Oxygen exists as the molecule O2. So it is:
4Fe + 302 ---> 2Fe2O3
Answer:
An earthquake will happen
Explanation:
Give me Brainllest
Answer:
pH = 11.3
Explanation:
From the question given above, the following data were obtained:
Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M
pH =.?
The pH of a solution is defined by the following equation:
pH = –Log [H₃O⁺]
Thus, with the above formula, we can obtain the pH of the solution as follow:
Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M
pH =.?
pH = –Log [H₃O⁺]
pH = –Log 4.950×10¯¹²
pH = 11.3
