I believe the correct answer is true. <span>Mass is conserved in both physical and chemical changes. Mass is always conserved which means it cannot be destroyed nor created by any means. It is true for all changes. Hope this answers the question.</span>
Explanation:
An oxidizing agent is a reactant that removes electrons from other reactants during a redox reaction. The oxidizing agent typically takes these electrons for itself, thus gaining electrons and being reduced. An oxidizing agent is thus an electron acceptor.
Examples of Oxidizing Agents include the following; Hydrogen peroxide, ozone, oxygen.
A half-equation shows you what happens at one of the electrodes during electrolysis . Electrons are shown as e -. A half-equation is balanced by adding, or taking away, a number of electrons equal to the total number of charges on the ions in the equation.
The balanced half reaction equation for H2O2 as an oxidizing agent is given as;
H2O2 + 2e^- + 2H^+ ==> 2H2O
The sugar will dissolve and the particles will form into the water
Here try this presentation, it should help :)
https://prezi.com/6ofdo3fadl9a/exothermic-and-endothermic-reactions-in-everyday-life/
Try looking at the question a little bit harder.