cual es el procedimiento de:Sobre un lente de telescopio incide la señal de luz, la señal llega con una energia de 7,163x10(elevado a la negativo 17) julios y tiene una longitud de onda de 333nm

Find the mass in grams of hydrogen gas produced when 14.0 moles of hcl is added to an excess amount of magnesium.

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter