How many nanoseconds are there in one minute?

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.

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Asolution is produced in which water is the solvent and there are four solutes. which of the solutes can dissolve better if the solution is heated?