Answer:
Explanation:
Tenochtitlan was located on a swampy island in Lake Texcoco in what is today south central Mexico. The Aztecs were able to settle there because no one else wanted the land. At first, it wasn't a great place to start a city, but soon the Aztecs built up islands where they could grow crops. The water also worked as a natural defense against attacks from other cities.
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Answer:
For oxygen: mass % O = (mass of 1 mol of oxygen/mass of 1 mol of CO2) x 100. mass % O = (32.00 g / 44.01 g) x 100. mass % O = 72.71 %
Explanation:
Answer:
it is actually the cell membrane.
Explanation:
the cell wall can only be found in plants
Answer:
Ionic bond is the electrostatic attraction among the positive and negative ions.
Explanation:
It forms when the valance electrons (electrons in the outer shell) of one atom are transferred to another atom.
