4Fe + 3O2 → 2Fe2O3
i believe this is the answer
From smallest to largest it will be first Carbon,Water,Carbohydrate,Mitochondria, Skin Cell.
1. Igneous roc
2. Weathering & erosion
3. Sediments
4. Sedimentary rock
5. Melting
6. Heat & pressure
Hope this is helpful
Plastic building blocks are good for building molecules because of some useful properties which they possess. For instance, plastic are flexible, they can be easily manipulated and can be made into any shape, size and combination. They can also be produced using different colors. Because of these features, they can be used to build and to explain how molecules behave.
Answer is D. The periodic table rows are arranged by increasing atomic number. The atomic number is decided by how many protons they have.
