C. marbles placed inside hollow sphere
Answer:
People can introduce their own biases into an experiment.
Explanation:
Answer:
-Cations: They are formed by an atom losing an electron or electrons.
-Anions: They are formed by an atom gaining an electron or electrons.
Answer:
<u><em>D.</em></u>
<u><em>All of these ions</em></u>
Explanation:
Hope this helps:)
