Quan sát giản đồ pha của H2O và CO2, hãy cho biết: a. Vì sao OB nghieenhg sang trái, OB' nghiêng sang phải. b. Hiện tượng gì xẩy ra khi nước đá và tuyết CO2 được để trong không khí (áp suất bằng 1atm). Giải thích

Different isotopes indicate that an element will have different numbers of

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Water undergoes a large change in density at 0 ∘ c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ∘ c given that