If an atom gains or loses electrons it becomes a
2 answers:
Answer:
When an atom gains/loses an electron, the atom becomes charged, and is called an ion.
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Answer:
it is called an ion
Explanation:
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A catalyst is a substance that speeds up a chemical reaction.
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So..... I believe this is a Convergent boundary and mountains..
Answer:
The answer is "
"
Explanation:
Given:
Molarity= number of moles
because it is 1 Liter

therefore,
it takes 20 mL of Tris.


So, take 