If the item or substance has changed into a state where you are able to change it back such as:
Water melting
Water freezing
Pretty much, if I were going to separate small solid particles, I could use like a piece of paper. I used some type of piece of paper when I was trying to separate some particles during science.
A Covalent Bond consist of 2 Electrons.
Answer: <u>2 Electrons.</u>
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- Innverted
Fold mountains<span> are </span>mountains<span> that form mainly by the effects of </span>folding<span> on layers within the upper part of the Earth's crust. Before either plate tectonic theory developed, or the internal architecture of thrust belts became well understood, the term was used for most</span>mountain<span> belts, such as the Himalayas.</span>
