Because they could have an explosive reaction and could possibly hurt you
A) polyester, hope it was quick enough
Answer:it’s C
Explanation:
A distant luminous object travels rapidly away from an observer.
Dimitry Mendeleef
Explanation:
Dimitry Mendeleef developed a table of elements which revealed regularities in elemental properties. He discovered the periodic arrangement of elements in 1869 while playing his game of solitaire.
- John Newlands in in 1863 proposed the idea of a repeating octaves of properties of elements.
- Dimitry Mendeleef described the periodic table or chart in 1869
- The chart was based on the periodic law which states that "chemical properties of elements are a periodic function of their atomic weights".
- In his periodic table, elements were arranged by atomic weights with recurring properties in a periodic manner>
Learn more:
Periodic table brainly.com/question/8543126
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