G What are two ways the moon's
appearance changes over time?
F It changes speed and brightness in
the sky
It changes orbit and brightness in
the sky.
H It changes speed and position in the
sky.
It changes phase and position in the
sky.

answer is a

explanation:

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

the answer is c. nacl

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8