Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. when water is heated, the molecules gain energy and because of that, move faster. as they move faster, they come in contact with the sugar more often, causing it to dissolve faster.
2.6 M hBr
This would be the correct answer.
Charge of nucleus is always positive whether it is element or isotope.
Boiling point is the temperature at which a liquid boils and turns to a gas.
Hope this helps!! (:
