¿Qué cantidad de gramos son equivalentes a 17,5 L de butano (C4H10)? Considere que este volumen del gas ha sido medido en CNPT

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

What element breaks down into yttrium-90?

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.