My thought would be B) gases.
I could be wrong but that's what i'd say
Answer: The pressure of the gas in atmospheres is 1.76
Explanation:
According to ideal gas equation:

P = pressure of gas = ?
V = Volume of gas = 70.0 L
n = number of moles = 
R = gas constant =
T =temperature =


Thus the pressure of the gas in atmospheres is 1.76
Answer: Sulphur and Oxygen
Explanation: Sulphate ion is
. It is polyatomic ion which is formed by the combination of sulphur and oxygen elements in the ratio of 1:4.
It is negatively charged species and thus is named by the name _ate at the end.
It usually exists with positively charged species to get stable. eg: ferrous sulphate (
)
<span>ANSWER:
Electrical energy accelerates the electrons in the neon gas. The gas ionizes and becomes plasma, containing both positive and negative ions.</span>