Suppose 2.57g of nickel(ii) chloride is dissolved in 350.ml of a 38.0mm aqueous solution of potassium carbonate. calculate the final molarity of nickel(ii) cation in the solution. you can assume the volume of the solution doesn't change when the nickel(ii) chloride is dissolved in it. be sure your answer has the correct number of significant digits.

Sorry I cant answer right now but tje answer is 1038.20m!

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

b.

the accuracy of the data.