E Question 4/21
0v
<
> NEXT
BOOKMARK
Х
q
4
A wave in the ocean has a wavelength of 2 m and frequency of 0.5 Hz. What is the speed of this wave?
A 1 m/s
B 2 mis
C) 10 m/s
D.10 m/s

The answer for #3 is c but i don't know why

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?