Among other also important contributions, I can mention tha he:
- Discovered the role of Oxygen in comustion and respiration
- Discovered that water is a compound of hydrogen and oxygen
- Invalidated the theory of phlogiston
- Discovered some elements
- Was a main contributor to develop chemistry as a quantitative science
- Made an extensive list of elements
It is called fusion. It is the process taking place on our sun, as two hydrogen atoms fuse together to form a helium atom and give off a small amount of energy <span>while losing some mass.</span>
Hope this satisfies your query! Have a good one :)
26. B
27. D
28. C
Hope this helped ☺️