Which of the following types of waste should not be recycled at home?
a expired medicines
b glass bottles
c papers
d plastic bags

me you

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

May someone me with these science questions

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false