Two chemical processes are given. • When kerosene burns, energy is ……1…… . • When hydrochloric acid is electrolysed, energy is ……2…… . Which words fill gaps 1 and 2?
- A1: given out; 2: given out
- B1: given out; 2: taken in
- C1: taken in; 2: given out
- D1: taken in; 2: taken in