How many water molecules are there in the equation ch4 + 202

Summarize possible ways in which phases of matter could combine to form a solution.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat

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.