Zadanie 3a
Wzorowane na: Chemistry SL Paper 2, May 2024, TZ2, pytanie 3(a). Treść, dane i kontekst są zmienione; sprawdzane umiejętności, format i punktacja jak w oryginale.
Darmowe konto pozwoli wrócić do niego później.
Informacja do zadań 3a-3d.
Metal oxides and non-metal oxides behave differently when they dissolve in water, and several of them affect the environment.
Polecenie
(i) State one environmental problem caused by acid rain.
(ii) Write an equation for the reaction of sulfur trioxide, SO3, with water in the atmosphere, in which an acid forms.
Sprawdź rozwiązanieUkryj rozwiązanieKlucz i punktacja
Odpowiedź z klucza
(i) any one of: damage to buildings / statues «by corrosion of limestone and metals»; death of fish / aquatic life in acidified lakes; damage to forests / leaching of nutrients from soil ✔
(ii) SO3(g) + H2O(l) → H2SO4(aq) ✔
Schemat punktowania
(i) [1]: accept any specific environmental problem caused by acid deposition. (ii) [1]: state symbols may be ignored; an unbalanced or word equation is not accepted.