Juan waited 5 hours for his mom to
come home and
then they went at a
constant speed 2
hours and then
they ate at
a restaurant.

How many moles are contained in 5.6 l of h2 at stp

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures