Answer:
but iron is 2 and 3 by its valance how could it be possible
The answer would be D.
SiCl4 + 2H2O → SiO2 + 4HCl (balanced equation)
Answer:
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The littoral zone of a lake is the area closest to the shore. It has very little biological activity but includes a lot of oxygen. The water in the lake's littoral zone is freshwater, free of living organisms such as plants and fish.
Answer: With atomic number 20, calcium atoms have 20 positive protons, and the ion has only 18 electrons, which means the net charge is +2. Calcium ions are essential for muscle contractions, nerve impulses, and bone maintenance.
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