Density of nitrogen= 1.20 g/l
no. of grams of nitrogen=m= (1.20g/l)(15.0l)= 18 g
molar mass of nitrogen=M= (14*2)= 28 g/mol
no. of moles of nitrogen=m/M=18/28= 0.643 moles
D. a change in color of a substance
a core of protons and neutrons surrounds by electrons
Answer:
WHAT DIAGRAM THX FOR POINTS THO
Explanation:
After careful consideration your answer is...
Leucippus and Democritus
*Hope I helped*
~Alanna~
