Someone know how to do this: Explain how the chemical equation Mg+2gCI2+H2 shows the law of conservation of mass

What is the correct lewis structure for chloroform chcl3

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Kp is the equilibrium constant for dissociation of the propionic acid dimer. what is the sign of the slope for a plot of the natural logarithm of kp vs. inverse temperature for this reaction?