Element A has 3 electrons in outermost shell so its valency is 3. It will loose 3 electrons to attain stability, as loss of 3 electrons is easier than gain of 5 electrons.

Valency of B is −2 as it will gain 2 electrons to attain stability and combine with other atom.

Valency of A⟶+3

Valency of B⟶−2

(Refer to Image)

Cross multiply valency of A and B

∴A2B3 compound will be formed.

3 0

3 years ago

Determine the molarity of 1.2 mol KCl in 1.1 L of a solution?

victus00 [196]

Answer:

1.1 M

General Formulas and Concepts:

Molarity = moles of solute / liters of solution

Explanation:

Step 1: Define variables

1.2 mol KCL

1.1 L of solution

M = unknown

Step 2: Solve for Molarity

Substitute: M = 1.2 mol/1.1 L
Evaluate: M = 1.09091

Step 3: Check

We are given 2 sig figs. Follow sig fig rules.

1.09091 M ≈ 1.1 M

7 0

2 years ago

Which of the following does not describe a solid

Liono4ka [1.6K]

Answer:

water is not a solid and a rock is a solid

4 0

2 years ago

I jst got the answer for you that is

gladu [14]

What do you mean? Is this for anyone stuck on the same question cause I don’t think that’s how it works lol

8 0

3 years ago