Pick TRUE or FALSE for the following statements: 1. There is a chemical difference between the gaseous and liquid state of the same substance
2. Liquids have a fixed temperature, but no fixed shape
3. Molecules of ice have less mass than molecules of water
4. A plasma is a gas with an electrical charge

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

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