A chemist prepares a solution of potassium iodide KI by measuring out 55.7μmol of potassium iodide into a 150.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in /mmolL of the chemist's potassium iodide solution. Round your answer to 3 significant digits.

the answer is a. co2, this would be colder than the : )

explanation:

a:

by the combination of an unlimited number of elements

what does the table look like

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer