Answer: Option (A) is the correct answer.
Explanation:
It is known that like dissolves like. So, water being a polar solvent is able to dissolve ionic compounds in it.
For example, is an ionic compound as it's atoms contain a metal and a non-metal.
Therefore, the bond present present in it is an ionic bond. Hence, when it is dissolved in water then its reaction equation is as follows.
Thus, we can conclude that is soluble.
I need an island six, 644 kg I was completely liner
The answer is <span>a. Rubidium
A cation is an ion that has a positive charge. The charge positive because it loses electrons. The radius of an atom is influenced by the electron because it is found at the outer layer of the atom. Since cation has less electron and anion get more electron, the radius of cation will be smaller than anion.
Rubidium is the biggest cation because it is located in the lowest row, thus having most electron count.</span>
Answer:
0.033 M
Explanation:
From the question given above, the following data were obtained:
Volume of stock solution (V1) = 250 mL
Molarity of stock solution (M1 ) = 0.10 M
Volume of diluted solution (V2) = 750 mL
Molarity of diluted solution (M2) =.?
Thus, we can obtain the molarity of the diluted solution by using the dilution formula as illustrated below:
M1V1 = M2V2
0.1 × 250 = M2 × 750
25 = M2 × 750
Divide both side by 750
M2 = 25/750
M2 = 0.033 M
Therefore, the molarity of the diluted solution is 0.033 M.
The answer is a. the smallest unit of matter that maintains its chemical identity.