What is the collective name for the cytosol and organelles?

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

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

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true