1000ml of a gas is cooled from 500 k to 250 k, what is it's final volume? a. 250 ml b. 1000 ml c. 500 ml d. 750 ml e. 2000 ml

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

Complete each row of the table below by filling in the missing prefix or missing exponent.

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.