Calculate the standard enthalpy of formation for CuO(s) from the following information. Cu2O(s) + ½ O2(g)⟶2 CuO(s) ∆H˚ = -144 kJ Cu2O(s) ⟶Cu(s) + CuO(s) ∆H = +11 kJ

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m

What is produced from neutralization of an acid and a base? a. hydronium ions b. citric acid c. salt and water

An unknown substance has been shown to have weak covalent bonds. which of the following is most likely a property of this substance? a. high ph b. high conductivity c. low melting point d. low flammability