Explain why the rate of potassium permagenate was faster in water than in a solid

i believe the answer would be b. hope it : )

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.

is it multiple choice?