Describe three general properties that would be desirable for a material(s) being used for the outer sole of tennis shoes.

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Explain what happens at the saturation point when adding salt to water at room temperature.