Answer:
substance A is a liquid, while substance B is a liquid or gas
Answer: A, C, E
Explanation: PLATO. all testable questions.
Answer:
Carbon dioxide and water I believe because it is a combustion reaction
CuCl2+F2—>CuF2+Cl2.
This is a single replacement because there is one compound and one element. Picture Cu as ‘A’ Cl2 as ‘B’ and F2 as ‘C.’ So AB+C—>AC+B. A and B “broke up” and that resulted to A going with C to create the compound CuF2 leaving Cl2 alone.