Match each symbol to what it represents.
a. p
number of moles
b. v
volume
c. n
pressure
d. r
8.314
e. t
temperature

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves