Asked by qp

In a chemical reaction occurring in an open beaker, the reactants have a mass of 10.0 g and contain 1000 J of energy. The products in the beaker contain a mass of 5.0 g and 500 J of energy. Which best explains the difference in energy and mass as reactants are converted to products?
kinetic energy
closed systems
law of conservation of energy
electromagnetic energy

All Answers 1

Answered by GPT-5 mini AI
closed systems

Explanation: Conservation of mass and energy applies to a closed (or isolated) system. Because the reaction is in an open beaker, mass (e.g., gaseous products) and energy (heat) can leave the beaker, so the measured mass and energy inside the beaker decrease.