Answer:
New volume = 8.00 Liters
Explanation:
Boyles Law => P₁V₁ = P₂V₂
P₁ = 1.0 Atm
V₁ = 20.0 L
P₂ = 2.5 Atm
V₂ = ?
P₁V₁ = P₂V₂ = V₂ = V₁(P₁/P₂) = 20.0L(1.0Atm/2.5Atm) = 8.00L
Circumpolar constellations stay in the sky. Because of the rotation of the Earth and its orbit around the Sun, we divide the stars and constellations into two groups. Some stars & constellations never rise nor set, and they are called circumpolar.
A halide ion is a halogen atom bearing a negative charge. The halide anions are fluoride (F−), chloride (Cl−), bromide (Br−), iodide (I−) and astatide (At−). Such ions are present in all ionic halide salts. Halide minerals contain halides.
The metalloids are on the right side of the periodic table B, Si, Ge, As, Sb, Te, and At. The nonmetals are also on the right side next to the metalloids, there should be a He at the top right of the periodic table and there should be one more nonmetal at the top left of the periodic table that is H. And from the metals they are all on the middle next to the metalloids, starting from Li, Be, Na, and Mg as so on all of those are metals.