C + O2 → CO2
If 4.0022 moles of CO2 are produced, how many moles of O2 were reacted?

Explain what happens at the saturation point when adding salt to water at room temperature.

Which material burns faster? metal aluminum

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.