Answer:
d
Explanation:
H3O =1×10_12=12 ooh is 12
Answer:
В.
The volume will decrease.
Explanation:
D! the molecules of the warmer water would have a higher average kinetic energy :)
Answer:
The halogens are extremely reactive, whilst the noble gases are mainly inert.
Only some noble gases tend to form compounds, such as xenon and krypton. However, some like helium, almost have no compounds at all.
Noble gases also have octet rule shells, which causes the little reactivity associated with them.
To form bonds with noble gases, a lot of energy is required to form those bonds.
Halogens, on the other hand, are extremely reactive. Compounds like chlorine and fluorine must be stored carefully, as they will oxidise anything that they can find, just to get one extra electron to get an octet configuration.
Hope this helps :)
When it changes phases energy is needednto break down the bonds so that is can change state from one phase to another.
