Do you expect to find an atom with 26 protons and mass number of 52 in nature
Why do metals change in appearance over time?
The exterior surface of metal can be changed by many chemical reaction takes place the reaction is carried out by presence of oxygen and water in air which Demage shiny surface of metal. The other processes can also be involved as pollution, moisture and environmental change can also effect on the surface of metal.
If metal is keept in open environment for a long time moisture contents in air boats the corrosion and rusting of metal processes.
Hopefully you will understand.
The products in a decomposition reaction _____. include an element and a compound
can be elements or compounds
can be elements or compounds.
A decomposition reaction occurs when one compound origin two or more compound, or when it breaks and form its elements. For example:
2NaN₃(g) → 3N₂(g) + 2Na(s)
It was formed a compound (N₂) and an element (Na).
How many moles of carbon are there in 19.2g of carbon? How many atoms of copper are in 11.4 moles of copper?
How much mass would 3.15 moles of O2 gas have?
How many moles of silver are there in 6.51E24 atoms of silver?