K+(aq) and Br-(aq)
Because the reactant also appears on the product side in the same form, it does not go through any chemical reaction and is therefore a spectator ion.
Answer:
hydrogen gas
Explanation:
Zn + 2HNO3 ------ Zn(NO3)2 + H2⬆️
There are five significant figures
Hope this helps and have a fabulous day :)
One of the clues are that there will be a change in temperature. Usually when a reaction takes place heat will be absorbed or released resulting in a change of temperature. Hope this helped!