Do you want this equation balanced?
If so, it would be
SiCl4 + 2H2O ---> SiO2 + 4HCl
Answer:
As per the general rule for finding oxidation number, When H is bonded with non-metal it has oxidation number as 1. As in the given ion, hydrogen is bonded with non-metal oxygen and there are three hydrogen atom, the oxidation number of hydrogen atom is 3.
The empirical formula CH₂O has a mass [(12 × 1) + (1 × 2) + (16 × 1)] = 30 g/mol
If the empirical formula is 30 g/mol,
and the molecular formula is 60 g/mol
Then the multiple is = 60 g/mol ÷ 30 g/mol
= 2
Therefor the molecular formula is 2(CH₂O) = C₂H₄O₂ (OPTION 2)
Population is 4.54 billion people
Let x = % abundance 63Cu
<span>let y = % abundance 65Cu </span>
<span>x +y = 100 </span>
<span>y = 100-x </span>
<span>63.546 = [ 62.9396 x + 64.9278 ( 100-x) ] / 100 </span>
<span>6354.6 = 62.9396 x + 6492.78 - 64.9278 x </span>
<span>138.18 = 1.9882 x </span>
<span>x = 69.50 % </span>
<span>y = 100 - 69.50 = 30.50 %</span>
