Answer:
1. The graph where x axis and y axis are present is called coordinate.
4. 18
Hey ik this isn’t a big help but there is a Chem app you can use to get your answers faster rather than waiting for someone to respond. anyways the app is called, ChemCalculator.
When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colours. Each metal gives a characteristic flame emission spectrum.
Answer:
The answer is: 
Explanation:
Scientific notation is of the kind: 
The given calculation:
Therefore, the answer in scientific notation is:
