Chemistry

Vacuum tubes have been replaced by:

A. Conductors B. Transistors C. Diodes D. None of these Explanation: In most applications, the vacuum tube is obsolete, having…

4 years ago

Frederick Sanger is a twice recipient of the Nobel Prize for ________?

A. Physics in 1956 and 1972 B. Chemistry in 1958 and 1980 C. Physics in 1903 and Chemistry in 1911…

5 years ago