Which statement describes all living things? a) they must reproduce sexually. b) they are composed of one or more cells. c) they are capable of making their own food. d) they have organ systems to carry out the processes of life.  hint {the subject is science}

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

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

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?