20. A compound's empirical formula is C5H5O If the molecular mass of the compound is 162.2g, what is the molecular formula? NO LINKS PLEASE:)!

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

How many grams of mgbr2 are needed to produce 75g or metal?

Consider the story you just read. all but one of the choices below indicate that something is living.