Many hospitals use radioisotopes for diagnosis and treatment or in palliative care. three radioisotopes used in medicine are given.

write the isotope symbol for each radioisotope.

iodine-131:

cobalt-60:

samarium-153:

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?