What is the role of a solvent? It dissolves the solute in a mixture. It gets dissolved in a mixture It helps mix solids together. h It keeps the parts of a mixture separated!

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates

Many birth-control pills release a constant amount of synthetic estradiols and progesterone for 21 days. true or false

Use the drop-down menus to match each part of the scenario to the correct scientific practice. akira records the speed of a reaction without a catalyst and then with a catalyst. akira creates a reaction without a catalyst and repeats the reaction with a catalyst. akira turns in a written lab report to his science teacher. akira wonders, "will adding a catalyst speed up this chemical reaction? " akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowers the activation energy needed to get the reaction started.