Can you help, please?
(When you answer, but the letter then the number, for example, H,8)

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?

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