Answer:
Density, 
Explanation:
Given that,
Mass of a flask is 450 g
Volume of benzene added to the flask is 145 mL or 145 cm³
The weight of the flask and benzene is found to be 754 g.
We need to find the density of the benzene.
Weight of benzene added = total weight of flask and benzene-mass of flask
m = 754 g - 450 g
m = 304 g
Density = mass/volume
So,
So, the density of the benzene is 
.
An open system is one where mass is able to flow in and out of the system. The mass entering this system is the water that is added to the fish tank, and the leaving mass is the waste that is generated.
The answer to this is <span>4 Al + 3 O2 = 2 Al2O3 i hope that this helps</span>
Answer:
I'm rly confused but Si stands for silicon in the compound if that's what ur asking
hope it helps tho
potassium reacts the most vigorously.
