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The answer should be A. CaO + CO2 —> CaCO3
A cell is NOT part of an atom.... Protons have a positive charge, electrons have a negative charge, and neutrons have no charge, they are in atoms, but a CELL is NOT
there's a total of five atoms
Reactants: 2VCl_2 + 3Cl_2; product: 2VCl_5
<em>Step 1</em>. Pick the <em>most complicated-looking formula</em> (VCl_5) and balance its atoms (V and Cl).
1VCl_2 + (3/2)Cl_2 → 1VCl_5
Oops! Fractional coefficients!
<em>Step 2</em>. <em>Multiply all coefficients</em> by a number (2) to give integer coefficients.
2VCl_2 + 3Cl_2 → 2VCl_5