I believe this is a double replacement. As you can see none of the chemical symbols are missing, there just "replaced".
Answer:
physical property
Explanation:
it is physical so is any melting and boiling point
Answer:
Reactants, Activation energy, Energy released by the reaction and Products
Explanation:
This energy profile is that of an exothermic reaction. In an exothermic reaction, heat is liberated to the surrounding. The surrounding becomes hotter than the environment.
The first box to the left is the reactants which signifies the species combining together.
The topmost box is the activation energy which is the energy barrier that must be over come before a reaction takes place.
The box underneath is the energy change. Here, energy is being released.
The right most box is the product of the reaction.
Answer:
Oxygen atom
Explanation:
A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms, which are bond together like little magnets. The atoms consist of matter that has a nucleus in the centre.
Answer:
Oxidation or Exothermic reaction
Explanation:
Oxidation means gain of oxygen.
Exothermic means loss of heat to combine 2 elements