Answer:
B. double replacement
Explanation:
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Cellulose and starch would be the indicator that the unknown substance is a plant.
Some elements have isotopes which have a different number of neutrons, and this means they have different masses.
Because Na has one too many electron to be stable, while Mg has 2. once they loose those electrons, they will be come ion. loosing one electron will give the ion a 1+ charge, and loosing 2 will create a 2+ charge
Rough, tan, grainy, and scratchy are some
