The formula for cocaine is C17H21N04. What is the percentage of carbon in the

compound?

(a) 4.62%

(b) 6.99%

21.1%

(d) 67.3%

Which chemical has the greatest tendency for reduction? A. Br2 E=-1.07v B. Cl2 E=-1.36V C. F2 E=-2.87v D. I2 E=-.54v

Do gold and silver have the same extensive properties

Which elements properties form the basis for all life

Is salt an element, a compound, a homogenous mixture, or heterogeneous mixture?

If a substance evaporates easily, it is said to be what?

How is the Kyoto Protocol enforced A. By using carbon credits and debits B. By banning aerosols C. By banning CFCs D. By monitoring the ozone hole

What are all the elements to the left of the zigzag line in a periodic table called?

Gravitational force is produced by ___ between objects

Which is most likely the result of millions of metal atoms crowding together so that molecular orbitals become combined? A. the loss of metallic propertiesB. the formation of bands in a crystalC. the loss of valence electrons to other atoms D.

Which particles can be stopped by human skin?) alpha and beta particles only alpha particles alpha and gamma particles beta and gamma particles