In your secret lab, you have 20 g of an unknown radioactive substance that you know is in the uranium decay family. After nine minutes, there are only 2.5 grams left. What is the most likely radioisotope?

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k

Identify and describe the three ways that mutations affect organisms.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space