There are 0.501 moles in 60.66g of CF2Cl2
Which type of telescope is most useful for detecting a star that emits very long electromagnetic waves?
A. a radio telescope B. an X-ray telescope C. an optical telescope D. a gamma ray telescope
A.)a radio telescope
the answer is 0.0693769. 6.02x10^21 x6.94/ 6.022x10^23 is the formua you would use.
Answer:
Uranium
Explanation:
The only natural element currently used for nuclear fission in reactors is uranium. Natural uranium is a highly energetic substance: one kilogram of it can generate as much energy as 10 tonnes of oil. Naturally occurring uranium comprises, almost entirely, two isotopes: U238 (99.283%) and U235 (0.711%).
