Rownanie chemiczne wodoru i chloru​

What is the correct equation for cellular respiration?

How does the motion of particles in a gas change as the gas cools

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.