Answer:
1. No
2. No
3. Yes
4. No
5. Yes
6. No
Explanation:
Use the reactivity series. If the element is above it, it is more reactive. More reactive elements can displace less reactive elements from their compounds.
<span>Opening a can of paint requires a screwdriver or other machine to pry open the lid. The screwdriver affect the force applied to opening the lid. The answer is : </span><span>B. It increases the applied force and changes its distance and direction.</span>
Ionization energy, also called ionization potential, in chemistry, the amount of energy required to remove an electron from an isolated atom or molecule
<u>Answer:</u> The correct answer is Option A.
<u>Explanation:</u>
pH is defined as negative logarithm of hydronium ion concentration. It is basically defined as the power of hydrogen ions that are present in a solution.
Mathematically,
![pH=-\log[H_3O^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%5BH_3O%5E%2B%5D)
pH of the solution = 9.11
Putting values in above equation, we get:
![9.11=-\log[H_3O^+]](https://tex.z-dn.net/?f=9.11%3D-%5Clog%5BH_3O%5E%2B%5D)
![[H_3O^+]=antilog(-9.11)](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%3Dantilog%28-9.11%29)
![[H_3O^+]=7.8\times 10^{-10}](https://tex.z-dn.net/?f=%5BH_3O%5E%2B%5D%3D7.8%5Ctimes%2010%5E%7B-10%7D)
Hence, the correct answer is Option A.
Answer:
7.85 C
Explanation:
you you can just Google it because that's what I did