Answer:
I think it's answer 3 and 2
Answer:
All matter is made up of very small particles.
There is space between particles.
All particles in a pure substance are the same.
The particles in matter are always in motion.
Particles are attracted to each other.
Explanation:
hope it helps
Answer:
34- Solid
35-Metals form metallic bonds releasing one or more valence electrons to form a common electron reservoir which contains free mobile elactrons who will conduct electricity well.
36 When the cation is formed electrons are removed and the effective positive neuclear charge increases and it makes the remaining electrons accumulate around the neucleous making the cationic radius smaller than that of the atom
molecular weight of toluene = 92 g/mol
C6 = 12 x 6 = 72
H5 = 1 x 5 =5
CH3 = 12 + 1 x 3 =15
molecular weight of benzene = 78 g/mol
C6 = 12 x 6 = 72
H6 = 1 x 6 = 6
moles toluene:
115.8 / (92 g/mol) = 1.25 mol
moles benzene:
45.2/ (78 g/mol) = 0.57mol
total moles: 1.25 + 0.57= 1.82 moles
mole fraction of toluene:
1.25 mol / 1.82 moles = 0.68
