Un cubo de metal tiene una masa de 20g y un volumen de 5cm3. ¿Esta hecho el cubo de aluminio puro? Explica tu respuesta

During which time interval does the object travel approximately 10 meters

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?