Answer:
ionic
Explanation:
Na is a metal, and Cl is a nonmetal, and Na has a + charge, whereas Cl has a - charge, and opposite polarities are attracted to each other, so it's an ionic bond. I onic bonds are also usually made up of metal and nonmetal
Oxygen
Silicon
Aluminium
Iron
Calcium
Oxygen=47 percent
Silicon=28 percent
Aluminium=8 percent
Iron=5 percent
Calcium=3.5 percent
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The baking soda
This is the more reactive part of the experiment. The more baking soda there is (compared to the vinegar), the stronger the reaction.
