Answer:
2
Explanation:
The 1 & 2 are both signifigant becuase they are presented in scientific notation.
Answer:
it's answer is lithium and boron.
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Answer:
The negative from object A must transfer to object B
Explanation:
Answer:
D. Sweat evaporates from your skin
Explanation:
A physical change is a reversible process, no new substance is formed. A physical change does not affect the chemical composition of a substance.
Sweat evaporation from the skin is a physical change, because the change that occur is merely a change of state, Liquid to Gaseous state, no new substance is formed.
