Answer: option C. Sulphur
Explanation:
Answer: effective nuclear charge
Explanation: This is because electrons are added to tell same shell at about the same distance from the nucleus
The balanced chemical reaction would be:
2H2 + O2 = 2H2O
We are given the amount of oxygen to react with hydrogen. To determine the amount of hydrogen needed for the oxygen to completely react, we use the balanced reaction to relate the substances. We do as follows:
64 g O2 ( 1 mol / 32 g ) ( 2 mol H2 / 1 mol O2 ) ( 2.02 g / 1 mol ) = 8.08 g of hydrogen gas needed
