Answer:
Its official chemical symbol is O, and its atomic number is 8, which means that an oxygen atom has eight protons in its nucleus
Explanation: I hope this helps!!!!!
Answer:
This energy is mostly seen when the ball is kicked in the air. It is called potential energy because it has the potential to do work. If the soccer ball is raised to a certain height, at the top, before it gains Kinetic Energy, it has the Potential stored that it will be used once it starts to move.
Explanation:
Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example : Reaction of iron nails with copper sulphate solution.
NO2 is a covalent compound
