2..............................................
Metals generally form cations, meaning they become positively charge - this positive charge is due to the loss of electrons.
Explanation:
Ionic bonds
Covalent bond
Vanderwaal force of attraction
It is a good thing that you already have answered the first question. Now, moving on to the second question, there exist an equation for the neutralization of acid by a base that is shown below,
M₁V₁ = M₂V₂
Now, all the variables in the equation are given except for our unknown which is the V₂. Substituting the known values from the given above,
(0.1 M)(25 mL) = (0.05 M)(V₂)
The value of V₂ from the equation above is 50 mL. Therefore, 50 mL of 0.05 M NaOH solution will be needed to completely react with HNO3.
Answer:
The Letter I
Explanation:
There are two flat horizontal lines. Those are phase changes. I is the solid state before the first phase change where the substance goes from a solid to a liquid.
So the answer is I