In an endothermic reaction, “delta H” is always positive, since the system is absorbing heat from its surroundings, not releasing into the surroundings like in an exothermic reaction where the delta H is always negative.
So our endothermic reactions would be the first (484kJ) and the last (92kJ).
Answer:
Competition occurs when <em>(A) two or more organisms need the same resource.</em>
Explanation:
I dont think it could be (B), (C) or (D) because those don't really make sense.
If the battery was removed, the energy produced by the battery would not be able to continue its path along the circuit.
The correct option is A.
The dependent variable is the variable that is measured during the experiment, it is the variable that is affected during the experiment. Experiments are design in such a way that the dependent variable depends on and respond to independent variable.
