Its a compound because they come together
Answer:
A pure substance has a definite chemical composition
<span><span>4.2×1022</span>NA</span><span> N_{A} is the avagadro number</span>
I believe You replace the ending of the elements name with -ide. example: magnesium flourine should should be magnesium flouride.
Answer:
n = 7.86 mol
Explanation:
This question can be solved using the ideal gas law of PV = nRT.
Temperature must be in K, so we will convert 22.5C to 295 K ( Kelvin = C + 273).
R is the ideal gas constant of 0.0821.
(2.24atm)(85.0L) = n(0.0821)(295K)
Isolate n to get:
n = (2.24atm)(85.0L)/(0.0821)(295K)
n = 7.86 mol
