B the answer is false driving force is formed of gravity pull..
The balanced chemical reaction is written as:
<span>4C(s) + S8(s) → 4CS2(l)
We are given the amount of carbon and sulfur to be used in the reaction. We need to determine first the limiting reactant to be able to solve this correctly.
</span>7.70 g C ( 1 mol / 12.01 g) =0.64 mol C
19.7 g S8 ( 1 mol / 256.48 g) = 0.08 mol S8
The limiting reactant would be S8. We use this amount to calculate.
0.08 mol S8 ( 4 mol CS2 / 1 mol S8 ) ( 256.48 g / 1 mol ) = 78.8 g CS2
a rock can be changed directly into metamorphic <span>rock with the </span><span>application of heat and pressure.</span>
Answer: The percent yield of zinc carbonate is 5.91 %
Explanation:
To calculate the moles :
is the limiting reagent as it limits the formation of product and 
is the excess reagent.
According to stoichiometry :
1 mole of produce = 1 mole of
Thus 1.7 moles of will produce=
of 
Theoretical yield of 
percentage yield = 
