Chemistry, 15.11.2019 17:31, majormkh10
The standard enthalpy change for the reaction of so3(g) with h2o(l) to yield h2so4(aq) is δh∘ = -227.8 kj . use the following information s(s)+o2(g)→so2(g), δh∘ = -296.8kj so2(g)+12o2(g)→so3(g) , δh∘ = -98.9kj to calculate δh∘f for h2so4(aq) (in kilojoules per mole). [for h2o(l),δh∘f = -285.8kj/mol].
Answers: 1
Chemistry, 21.06.2019 16:30, hailiemanuel3461
Select the correct answer from each drop-down menu. daniel and sanya are scientists. daniel is studying whether the increasing frequency of tropical storms is affecting coastal erosion. sanya is investigating whether the discharge from industrial plants has any impact on the ph concentration of freshwater swamps in the surrounding area. which fields of science are daniel’s and sanya’s studies most closely related to? daniel’s field of study is related to science, and sanya’s field of study is related to .
Answers: 3
Chemistry, 22.06.2019 17:30, llamasking
Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
Answers: 2
Chemistry, 22.06.2019 19:30, simihehe
Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
Answers: 2
The standard enthalpy change for the reaction of so3(g) with h2o(l) to yield h2so4(aq) is δh∘ = -227...
English, 01.04.2020 02:30