Answer:
Try quizlet, they have everything on there
Explanation:
Answer:
the first line
Explanation:
A rarefaction is a region in a longitudinal wave where the particles are furthest apart. ... The region where the medium is compressed is known as a compression and the region where the medium is spread out is known as a rarefaction.
use this picture as a reference:
Answer:
See Explanation
Explanation:
When a salt is dissolved in water, the solution could be acidic, basic or neutral depending on the nature of acid and base from which the salt was formed.
When a salt is formed from a strong acid and a weak base, the salt solution is acidic.
For instance, NH4Cl is a salt formed from NH3 which is a weak base and HCl which is a strong acid. The salt hydrolyses as follows;
NH4^+(aq) + H2O(l) ------> H3O^+(aq) + NH3(aq)
Hence an acidic solution is formed.
B. Proton and neutrons in nucleus. Electron is not located at nucleus.
Answer:
The number of neutrons in an atom is 10.
Explanation:
neutron: mass # - proton
neutron: 19 (18.9984 (rounded)) - 9
neutron: 19-9 = 10
