Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. Use the Periodic Table to find molar masses.

How many moles of ethanol are present in the sample?

How many atoms are there in 5.70 mol of mg

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.