Compare the energy conversions that happen when food burns and when the food molecules react with oxygen in the body to provide energy

Which substances have the lowest melting points: ionic covalent, or metallic

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?