You are to make a 0.700 M solution of NaCl from the solid sodium chloride bottle in the chemistry stockroom. You'll have to weigh out the correct amount of solid sodium chloride in order to make 1.50 L of this solution. How much should you weigh out, so that you can just put it into a 1.5000 L volumetric flask and fill it to the mark with solvent

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

idk i'm not smart

explanation:

t h