Would this reaction occur? Magnesium hydroxide + Potassium

If so, choose the appropriate written and balanced reaction

Mg(OH)2 + 2 K → Mg + 2 KOH

this reaction would not occur

Mg2OH + K → 2 Mg + KOH

MgOH + K → Mg + KOH

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.