*15 points* How much louder is the sound of heavy street traffic (60dB) than the sound of normal conversation(40dB)?

A. 20 times louder
B. 100 times louder
C. 240 times louder
D. 2 times louder

Gas cloud 1 is likely to form a star. gas cloud 2 is not. based on this information, match the given conditions with each cloud

If a balloon is taken outside on a very cold day, what will occur?

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .