A student dissolved a 40-gram block of salt in 100 grams of warm water at 45°C. The solution was allowed to cool down to 24°C. The student
noticed that some of the salt came out of the solution and settled to the
bottom of the beaker. It is later determined that 12 grams of the salt came
out of the solution. How many grams of the salt were dissolved in the
solution?

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.

i think the answer is a.keratin is the pigment responsible for skin color.

loss of sensation to pressure and touch

the dorsal column–medial lemniscus pathway (dcml) (also known as the posterior column-medial lemniscus pathway (pcml)) is a sensory pathway of the central nervous system that conveys sensations of fine touch, vibration, two-point discrimination, and proprioception (position) from the skin and joints.