The table below shows the frequencies in a C-major scale. Which note in this scale has the highest pitch?
Note
с
DE
F
A
B
Frequency (Hz)
261
293
329
349
392
440
493
A. B
B. C
C. D
O D. A

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.