Based on the table above, which amount of a compound dissolved in 100 grams of water at the stated temperature represents a system at equilibrium? Select one:
a. 40 g NaCl at 70 degrees Celsius
b. 20 g KClO3 at 70 degrees Celsius
c. 80 g NaNO3at 10 degrees Celsius
d. 80 g Pb(NO3)2 at 30 degrees Celsius

C. 80g  Nano3 at 10 degrees Celsius

Explanation:

I just took the test

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

b.

the accuracy of the data.