An atom is described as a nucleus of protons and neutrons surrounded by a(n)
a) protons.
b) neutron cloud.
c) electron cloud.
d) negative force.

Acar tire has a pressure of 2.38 atm at 15.2 c. if the pressure inside reached 4.08 atm, the tire will explode. how hot would the tire have to get for this to happen? report the temperature in degrees celsius.

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

Which characteristics can be used to differentiate star systems? check all that apply.