¿Cuál es el porcentaje en masa del hidróxido de sodio de una solución que contiene 8 gramos de NaOH en 50 mL de agua?

In all living cells dna controls cellular activities by

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

Which metal exist in liquid state and can be cut with knife ?