Which factors you identify the solute and the solvent in a solution? select all that apply. in a solution, the solvent is present in a greater amount. in a solution, the solute dissolves in a solvent. in a solution, the solute is the dissolving agent.

The answers would be:

In a solution, the solvent is present in a greater amount.

In a solutions, the solute dissolves in a solvent.

In general, these are the best answers. The solute is what is being dissolved and the solvent is what dissolves. A solvent comes in greater amounts in a solution and it is the dissolving agent.

For example, sugar and water.

To make a sugar water solution, you will need to dissolve sugar in water. Sugar is the solute in this case because it is what is being dissolved. The water is the solvent, because it dissolves the sugar.

If you had more sugar than water, then you cannot make a solution.  

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.