2Ag+(aq) + CO2-_3(aq)-----------Ag2CO3
Answer:
true. e.g
iron+water+oxygen->hydratedironoxide
Answer:
See Explanation
Explanation:
An endothermic reaction is one in which energy is absorbed and the change in enthalpy for the reaction is positive.
If we look at the reaction 2HgO + 45kcal ----> 2Hg + O2; we will notice that
i) 45kcal of energy was taken in (absorbed) for the reaction to occur
ii) The value of the reaction enthalpy is positive
For these two reasons, the reaction is an endothermic reaction as written.
It will be Oxygen . And total 8 protons, 8 electrons and 9 neutrons are present in it.
Answer:
it can last for 30 minutes
Explanation:
because it is very good at giving off heat, extothermal heat can last for quite a while.
