The solution formed a precipitate when HBr is added. This indicates that the cation present would be silver ion(Ag) as silver forms an insoluble precipitate with bromide ion.
The equation representing the formation of silver bromide precipitate is:
Bromides of all the other cations,are soluble in aqueous solutions.
After removing the precipitate of AgBr by filtration, the supernatant solution is treated with and another precipitate forms. This would be due to the presence of ions as barium sulfate is an insoluble precipitate.
The equation representing the formation of barium sulfate precipitate is:
I think probably diet because the type of food you put in your body (if it has high calorie or sodium) can severley affect your overall health and therefore affect your bpm(beats per minute)
The car will have more momentum because it has a greater mass. Momentum= mass x velocity therefore if both the objects have the same velocity the object with a greater mass will have more momentum