Answer:
1/2 ( the two answers given are not FRACTIONS)
Explanation:
Moles of CH3OH = 128 gm / 32 gm / mole = 4 moles
Moles of water 72 gm / 18 gm /mole = 4
Mole fraction of CH3OH = 4 / ( 4+4) = 4/8 = 1/2
Answer:
I Would bc it's the better opportunity
Answer:
Density,
Explanation:
It is given that,
Mass of an unknown liquid, m = 20.5 g
The volume of unknown liquid is 25 mL
We need to find the volume of the brass object. Mass per unit volume of an object is called its density.
We know that, 1 mL = 1 cm³
So, 25 mL = 25 cm³
Putting the values, we get :
So, the density of this substance is
D. Rutherford's gold foil experiment
Answer:
CaC2 + 2H2O > C2H2 + Ca(OH)2
Explanation:
Count the amounts of Ca, C, H, and O, all separately on both sides.
Ca: 1 Ca: 1
C: 2 C:2
H: 2 H: 4
O: 1 O: 2
Now, your goal is to get both sides equal to each other by adding a 2 in front of H2O.