21Explanation:BEACUSE I CAN
Answer:
an electron is part of the 3 things that are in an atom, it has a negative charge
Answer:
salt is dull and brittle and conducts electricity when it has been dissolved into water, which it does quite easily.
Explanation:
transparent and colourless in crystalline form- rather like ice.
Answer:
Explanation:
Most blood types are determined by red cell antigens that differ by one or two amino acids, the Rh positive blood group contains the D antigen
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