Answer : The type of reaction described in the sentence is Synthesis or Combination
Explanation :
The balanced equation for the reaction between Phosphorous and Oxygen gas can be written as
![4P (s) + 5O_{2} (g) ------> P_{4} O_{10} (s)](https://tex.z-dn.net/?f=%204P%20%28s%29%20%2B%205O_%7B2%7D%20%28g%29%20------%3E%20%20P_%7B4%7D%20O_%7B10%7D%20%20%28s%29%20)
From the above equation we can see that there are two different reactants ( P and O₂ ) which are combining with each other to give a single product.
This type of reaction is known as Combination or Synthesis.
A general form of Synthesis reaction is given below.
![A + B ----> AB](https://tex.z-dn.net/?f=%20A%20%2B%20B%20----%3E%20%20AB%20)
Here we can conclude that a synthesis / combination reaction is the one where 2 or more reactants combine together to give only one product .
A, Since the electrons and the protons are the same amount.
Carbon dioxide is a compound. Oxygen is an element. A compound is 2 or more elements chemically combined. An element is a pure substance. A mixture is combining two or more different compounds/elements.