4 points
Using your solubility curve, how many grams of sodium sulfate will
dissolve in 100 g of water at 30°C?*
489
O939
O 519
0
12 g

29.1-12=17.1the answer is this one

C, small, hard spheres with insignificant volumes

Polyethylene is a strong synthetic polymer that can be used to make toys and bottles. polyethylene is a plastic material called thermoplastic. one very useful property of thermoplastic is that when it is heated it turns into liquid, which can be molded into desired shape and size. also the material do not dissolve at room temperature.