Lithium=li
Iron=Fe
Helium=He
I don't say u must have to mark my ans as brainliest but if u think it has really helped u plz don't forget to thank me....
Answer: Physical changes are related to physical properties since some measurements require that changes be made. Melting Point: As solid matter is heated it eventually melts or changes into a liquid state at the melting point. Ice (a solid form of water) melts at 0 oC and changes to the liquid state.
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C) It moves faster and collects more data
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hydrgen = i think it is 4
oxygen = i think it is 3
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