Answer:
A.) combustion
Explanation:
Combustion reactions are a specific type of redox reaction which always have the same general structure: CₓHᵧ + O₂ ---> H₂O + CO₂ + heat/light
Decomposition reactions are reactions which involve a molecule breaking down into smaller compounds/elements. They have the general structure: AB ---> A + B
Double replacement reactions are reactions in which the cation of one compound is swapped with the cation of another compound. They have the general structure: AB + CD ---> AD + CB
30 electrons = atomic number
Look at your periodic table. You will see zinc has a atomic number (the top number) of 30.
When you add 30 and 35 you get 65. The is the atoms ATOMIC MASS. So looking at zinc on the periodic table, look at its bottom number, which is its atomic mass. It will be 65.
This means the name of the element is ZINC.
Hope this helped!
Here's how you would solve it. The process should be the same for the others.
gene therapy is the answer
