Answer: PV = nRT
A gas at STP... This means that the temperature is 0°C and pressure is 1 atm.
R is the gas constant which is 0.08206 L*atm/(K*mol)
Rearranging for volume
V = nRT/P
The temperature and number of moles are held constant. This means that this uses Boyle's Law. (The ideal gas law could be manipulated to give us this result when T and n are held constant.)
PV = k
where k is a constant.
This means that
P₁V₁ = k = P₂V₂
P₁V₁ = P₂V₂
(1 atm) * (1 L) = (2 atm) * V₂
V₂ = 0.5 L
The new volume of the gas is 0.5 L.
Explanation:
Answer:
S (Sulfur)
Explanation:
Electronegativity increases as you go up and right on the periodic table, excluding the noble gases on the rightmost column because they have zero electronegativity. S is the farthest right out of all the elements listed in the question excluding Ne.
Answer: Magnesium
Explanation:
Sodium, number of electrons= 11
Aluminum, number of electrons= 13
Magnesium, number of electrons= 12. which is greater than sodium but less than aluminum.
I believe that the ice cube, being that it still has almost all of its properties, would still have a mass of 25 g after melting
When muscles are moved this represents a transfer from chemical energy to mechanical energy. As always, energy is conserved in the system. Kinetic energy can then come from the mechanical energy.
