The first one is 4. i cannot see the full operation of the rest.
I think the correct answer is D. Baking a cake is an example of endothermic reaction. The chemical changes happening when you bake a cake includes denaturing proteins in milk, eggs, and flour. Chemical bonds are broken and new bonds are made. To aid these changes, heat is supplied by the heat in an oven.<span />
The particles move from an area of high concentration, to an area of low concentration, until the distribution of particles is equal
For C, they would be the same. At the equivalence, you have equal moles of both the acid and the base.
