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On the periodic table, what does the roman numeral at the top of the column represent?

Ox is the chemical symbol for oxygen

Visible light itself contains various wavelengths of light, and can be seen by passing it through a prism

If Hydrogen has an atomic number of 1 and an atomic mass of 1. How many electrons in the outer shell does Hydgrogen have?

Photosynthesis transforms solar energy into the chemical energy of a carbohydrate

One characteristic of water is that it is less dense when frozen…..it floats

Another name for the mitochondria is the “powerhouse of the cell” because it makes the energy the cell needs to carry on

Which term best describes the zone of air land and water where living organisms are found?