How many atoms are in 2N4?

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

What is the value of the standard enthalpy of formation of an element in its most stable form?

An unknown substance was put in a container. the substance filled up the container from bottom up, taking half of the space in the container. what is most likely the state of matter of the substance? gas liquid plasma solid