8g of a solid is dissolved in 102.5 ml of water with a density of 1.01 g/ml. if the total volume of the solution is 107.4 ml, what is the density of the solution in g/ml with the correct number of significant digits.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

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