Is that the question orr......?
The correct answer is option 3. The IUPAC name is Iron(II) sulfide. It is the less stable amorphous form. When this is powdered, it is pyrophoric or it ignites spontaneously in air. It readily reacts with hydrochloric acid producing hydrogen sulfide.
Less than the revolution perilous around earth
Answer:
V₂ = 46.34 mL
Explanation:
Given data:
Initial temperature = 273 K
Initial volume = 50.0 mL
Final temperature = 253 K
Final volume = ?
Solution:
The given problem will be solve through the Charles Law.
Charles Law
"The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure"
Mathematical expression:
V₁/T₁ = V₂/T₂
V₁ = Initial volume
T₁ = Initial temperature
V₂ = Final volume
T₂ = Final temperature
by putting values in formula,
V₁/T₁ = V₂/T₂
V₂ = V₁T₂/T₁
V₂ = 50.0 mL × 253 K / 273 k
V₂ = 12650 mL.K / 273 K
V₂ = 46.34mL
Explanation:
-In NaCl, the sodium ion is the positive one. The chloride ion is the negative one.
-In Ca3P2, the calcuim ion is the positive one. The phosphide ion is the negative one
-In Rb2S, the rubidium ion is the positive one. The sulfide ion is the negative one
-In AlBr3, the aluminum ion is the positive one. The bromide ion is negative
-The K2Se, potassium ion is the positive one. The selenide ion is the negative one
-The BaO, the baruim ion is the positive one. Oxygen ion is the negative one