Answer:
All ions must a overall charge
Explanation:
The correct name for the N3- ion is a nitride ion.
Answer:
its d and can i get brainliest plz:)
Explanation:
Answer:
Explanation:
The formula of calcium nitride is Ca₃P₂.
The masses of each element are:

So, there are 61.94 g of P in 182.18 g of Ca₃P₂.
In 500 g of Ca₃P₂:

There are
in 500.0 g of Ca₃P₂.
Answer: a) 211 mm Hg
b) 0.629 grams
Explanation:
According to Dalton's law, the total pressure is the sum of individual pressures.

= total pressure = 750 mmHg
= 124 mm Hg
= 218 mm Hg
= 197 mm Hg
= ?


Thus the partial pressure of the helium gas is 211 mmHg.
b) According to the ideal gas equation:
P = Pressure of the gas = 211 mmHg = 0.28 atm (760mmHg=1atm)
V= Volume of the gas = 13.0 L
T= Temperature of the gas = 282 K
R= Gas constant = 0.0821 atmL/K mol
n= moles of gas= ?
Mass of helium= 
Thus mass of helium gas present in a 13.0-L sample of this mixture at 282 K is 0.629 grams