Calcular la cantidad en moles del tetraóxido de hierro que se pueden obtener a partir de 40 gramos de agua (90%) y 25 g de hierro sólido (98%), ademas, determine el porcentaje de rendimiento de la reacción 100 si en un laboratorio luego del proceso se obtuvieron 15 gramos del tetraóxido de hierro.

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough