En una reacción de combustión se queman 3 gramos de un compuesto orgánico, si se producen 8 gramos de CO2 ¿Qué porcentaje en masa del compuesto es carbono?.

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Which of the following compounds would be expected to have the strongest ionic bonds? a)the compound that has b)the largest ions with the greatest charge c)the compound that has d)the largest ions with the least charge the compound that has the smallest ions with the greatest charge the compound that has the smallest ions with the least charge

The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3