Al-qaeda is the name of the group that fought against the soviet-supported government in afghanistan.
a. true
b. false

How will the emission of an alpha particle affect the atomic number of an atom

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Stage in which a star’s outer layers have started to cool and grow outward?