Question

a scientist performs the following chemical reaction. sicl₄ + 4h₂o → h₄sio₄ + 4hcl. which of the following does the scientist use as a reactant for this reaction? 8 atoms of hydrogen, 4 atoms of carbon, 15 atoms of hydrogen, 20 atoms of oxygen

Explanation:

Step1: Analyze the reactants in the equation

The reactants are $SiCl_4$ and $4H_2O$.

Step2: Count the atoms of each element in the reactants

In $SiCl_4$, there is 1 silicon (Si) and 4 chlorine (Cl) atoms. In $4H_2O$, there are $4\times2 = 8$ hydrogen (H) atoms and 4 oxygen (O) atoms.

Answer:

8 atoms of hydrogen