Answer:
Physical Change
Explanation:
The bush is changing shapes, not changing what it is.
Is this a test or something else?
Answer: 
Explanation:
a)
: This is a non polar covalent compound which are held by weak vanderwaal forces of attraction.
b)
: This is a covalent compound which is polar due to the presence of lone pair of electrons and are held by dipole-dipole forces of attraction.
c)
: These are joined by a special type of dipole dipole attraction called as hydrogen bond. It forms between electronegative nitrogen atom and hydrogen atom and is the strongest interaction.
d)
: This is a covalent compound and is non polar which are held by weak vanderwaal forces of attraction.
e)
: This is a covalent compound and is non polar which are held by weak vander waal forces of attraction.
Well, its a very simple process actually. Here is how it works;
When molecular hydrogen, also known as H2, and oxygen, also known as O2, are combined and are able to react together, energy is released and the molecules of the hydrogen and the oxygen. These can combine to form either water or hydrogen peroxide, depending on how the chemicals mix.
I hope I made your day a little easier,
Have a great day and happy Halloween!
Answer:
oxidation-reduction reaction or redox reaction.
Explanation:
If hydrogen gas is passed over heated copper oxide (CuO), the black coating on the surface turns brown as the reverse reaction takes place and copper is obtained